Contact

Dr. G.S. Mahapatra

Professor

Department of Mathematics

National Institute of Technology, Puducherry

Karaikal-609 609, India

E-mail: gs.mahapatra@nitpy.ac.in (Official)

             g_s_mahapatra@yahoo.com

Education

# Ph. D. in Mathematics, 

    Bengal Engineering and Science University, Shibpur

    (Indian Institute of Engineering Science and Technology, Shibpur )

    Howrah-711103

# M. Sc. in Applied Mathematics,

    Bengal Engineering College (D.U.), Shibpur

   (Indian Institute of Engineering Science and Technology, Shibpur )

# B. Sc. in Mathematics (Hon's),

    SRSVM, Kamarpukur, The University of Burdwan.

Experience

Professor in Mathematics, NIT Puducherry from December 2024 to till date.  

Associate Professor in Mathematics, NIT Puducherry from June 2018 to December 2024.  

Assistant Professor in Mathematics, NIT Puducherry from July 2013 to June 2018.

Assistant Professor in Mathematics, SIT Siliguri from September 2009 to June 2013.

Lecturer in Mathematics, SIT Siliguri from July 2005 to January 2007.

 Courses Taught at UG/PG

• MA101 Mathematics –I 

• MA102 Mathematics –II

• MA201 Mathematics –III 

• Differential Calculus and Algebra (MA151)

• Operations Research (MA401)

• Research Methodology (RM801)

•  Advanced Mathematics (MA601) 

• Transformation Techniques (MA221) 

•  Integral Calculus and Differential Equations  (MA122)

• Numerical Methods for Electrical Engineering  (MA208)

• Probability Theory and Linear Programming (MA202)

• Probability and Statistics (MA251) 

• Transformation and Complex analysis (MA221) 

• Transformation Techniques (MA205)

• MA202 Mathematics –IV

Laboratory Development

Successfully Established COMPUTATIONAL LABORATORY  in the Department of Mathematics, NIT Puducherry  (jointly with Dr. V. Govindaraj).

Administrative Contributions

• Dean, Research and Consultancy, National Institute of Technology Puducherry (Continuing) 

• Head of the Department, Department of Mathematics, NIT Puducherry 

• Member, Academic Audit Committee, Department of Mathematics 

• Member, Board of Studies for B.Tech. Mathematics papers 

• Non-teaching Scrutinizing Committee 

• Chairman Physical verification Committee (Library, Mech. Dept.) 

• Member, Board of Studies for M. Sc. Mathematics 

• Head of the Department, S&H, NIT Puducherry

• RTI-Nodal Officer  

• Chief Vigilance Officer 

• Registrar in charge 

• Warden / Faculty in charge Hostel 

Research ID's

RESEARCH ID’s: Q-4108-2016, 

SCOPUS ID: 12646976300, 

ORCID ID: orcid.org/0000-0002-5225-0445, 

h-index: 32  

i-10 index: 93 

Research Interests

Reliability; Operations Research; Fuzzy Set Theory; Mathematical Ecology; Soft Computing, etc. 

Journal Publications 

Shilpi Pal, Puja Supkar, G.S. Mahapatra, Dual buyer–vendor trade credit with imprecise holding cost and stochastic lead time allows screening. OPSEARCH,2025. DOI: 10.1007/s12597-025-00953-7.

Shilpi Pal, P.K. Santra, G.S. Mahapatra, Price-dependent fuzzy demand and shortages scenario with memory effect on inventory system incorporating optimal replenishment strategy. Engineering Research Progress, 2025. DOI: 10.1088/2631-8695/adda8f.

S. Golui, Bidyut Das, G.S. Mahapatra, B.S. Mahapatra, Hesitant Bi-fuzzy Dombi Operator Based Group Decision-making Approach for Electric Vehicle Selection. Process Integration and Optimization for Sustainability, 2025. DOI: 10.1007/s41660-025-00519-6. (SCOPUS, I.F: 2.1)

N Nageswari, G.S. Mahapatra, Ansuman Mahapatra, Predictive framework of software reliability analysis under multiple change points and imperfect debugging. Software Quality Journal. 33(2), 2025. DOI: 10.1007/s11219-025-09718-3. (SCIE, I.F: 1.7)

A.A. Elsadany, G.S. Mahapatra, P.K. Santra, Debkumar Pal, Amr Sonbaty, Abdulrahman Alkhedhairi, Impact of fear and harvesting effort on a differential-algebraic prey-predator model based on square root functional response. Journal of Mathematical Sciences. 1-21, 2025. DOI: 10.1007/s10958-025-07659-7.

B.V. Baranidharan, G.S. Mahapatra, V. Keerthana, Encoding Residuation Principle and Representation Theorem Under Pythagorean Fuzzy Using Triangular Norm and Conorm. International Journal of Fuzzy Systems, 2025. DOI: 10.1007/s40815-024-01913-x. (SCIE, I.F: 3.6)

B.V. Baranidharan, Gunji Bla Murali, Zechun cao, G.S. Mahapatra, Pentagonal fuzzy fractional three-stage sustainable transportation network problem incorporating extension principle. Ain Shams Engineering Journal. 16. 103261, 2025. DOI: 10.1016/j.asej.2025.103261 (SCIE, I.F: 6)

M Dharmalingam, G.S. Mahapatra, R Vijayakumar, Environment-Aware Multi-criteria Decision-Making for selecting a site for a Mobile Tower Installation Using the Fermatean Fuzzy TOPSIS Technique. International Journal of Fuzzy systems, 1-23, 2025. DOI: 10.1007/s40815-024-01892-z. (SCIE, I.F:4.085)

M Ramana Devi, G.S. Mahapatra, A Kumar, Preservation empowered dual-warehousing for perishable product under trade-credit financing scheme incorporating diverse demand. International Journal of Systems Science: Operations & Logistics, 12 (1), 2025. Article- 2449412.  DOI:10.1080/23302674.2024.2449412. (SCIE, I.F:4.0)

B Bavadharani, G.S. Mahapatra, N.M. Sivaram, P Balasundaram, Selection of phase change material under uncertainty for waste heat recovery in diesel engine generator. Journal of Energy Storage, 108(1), 12-25, 2024. DOI: 10.1016/j.est.2024.114982. (SCIE, I.F:8.9)

R. Prem Kumar, G.S. Mahapatra, Sanjoy Basu, P.K. Santra, Global stability and sensitivity analysis of dengue transmission using four host and three vector classes along with control strategies. International Journal of Computer Mathematics, 2024. DOI: 10.1080/00207160.2024.2431683.  (SCOPUS, I.F: 1.7)

B.S. Mahapatra, Debashis Ghosh, Dragan Pamucar, G.S. Mahapatra, Dynamic group decision-making for enterprise resource planning selection using two-tuples Pythagorean fuzzy MOORA approach. Expert Systems with Applications,263, 125675, 2024. DOI: 10.1016/j.eswa.2024.125675. (SCIE, I.F:8.5).

Sanjoy Basu, G.S. Mahapatra, Numerical solution of fuzzy non-linear equations under generalized trapezoidal fuzziness by Newton–Raphson method. Franklin Open 9(3), 100168, 2024.  DOI: 10.1016/j.fraope.2024.100168.  (I.F: 3.7)

R.Vijayakumar, G.S. Mahapatra, Dragan Pamucar, Fermatean trapezoidal fuzziness average aggregation scheme for selection of infant clothing by group decision-making. Applied Soft Computing, 167, 112317, 2024. DOI: 10.1016/j.asoc.2024.112317 (SCIE, I.F:8.263)

B.V.Baranidharan, G.S. Mahapatra, A New Solution Technique for Fuzzy Transportation Problem Using Novel Ranking Functions on Heptagonal Fuzzy Numbers: A Case Study of Regional Shipment. Journal of Computational and Cognitive Engineering, 2024. DOI: 10.47852/bonviewJCCE42023253. (SCOPUS)

R Prem Kumar, G.S. Mahapatra, PK Santra, Juan J Nieto, Optimal control for dengue transmission based on a model with reinfection and treatment. Mathematical Population Studies, 2024. DOI: 10.1080/08898480.2024.2394659.  (SCIE, I.F:1.4)

B Maneckshaw, G.S. Mahapatra, Crossover point analysis with Jensen-Shannon divergence lower bound for bi-objective reliability optimization of k-out-of-n system. Reliability Engineering & System Safety, 2024. DOI: 10.1016/j.ress.2024.110480. (SCIE, I.F:9.4)

S Golui, BS Mahapatra, G.S. Mahapatra, Reliability analysis of landing architecture of aircraft using Fermatean fuzzy arithmetic operation. Life Cycle Reliability and Safety Engineering, 2024. DOI: 10.1007/s41872-024-00273-7. (SCOPUS, I.F:0.19)

Ramakrishna Doodi, Kaduvula Sri Harsha, Bala Murali Gunji, and G.S. Mahapatra, Energy Absorption Capacity of Bio-Inspired Honeycomb Integrated Beetle Elytron Plates. Engineering Proceedings, 2024. DOI:10.3390/engproc2024066011. (SCOPUS)

P K Santra, Induchoodan R and G.S. Mahapatra, Analyzing election trends incorporating memory effect through a fractional-order mathematical modeling. Physica Scripta, Volume 99, Number 7, 2024. DOI: 10.1088/1402-4896/ad5420. (SCIE, I.F:2.6)

M. K. Mondal, B. S. Mahapatra, M. B. Bera & G.S. Mahapatra, Sustainable forest resources management model through Pythagorean fuzzy MEREC–MARCOS approach. Environment, Development and sustainability, 2024.  DOI:10.1007/s10668-024-05164-6. (SCIE, I.F:4.7)

RP Kumar, G.S. Mahapatra, PK Santra, Dynamical analysis of SARS-CoV-2-Dengue co-infection mathematical model with optimum control and sensitivity analyses. Nonlinear Analysis: Real World, Volume 80, 2024.  (SCIE, I.F:1.8)  DOI: 10.1016/j.nonrwa.2024.104175.

Arup Dasgupta, A. S. Mahapatra, P. K. Santra, G. S. Mahapatra, A. K. Shaw, Biswajit Sarkar, Learning and memory effect in a fractional order quantity model incorporating promotion-assisted demand under uncertainty. Journal of Industrial and Management Optimization, 2024. DOI: 10.3934/jimo.2024063.  (SCIE, I.F:1.2)

P. K. Santra, G.S. Mahapatra, Sanjoy Basu, Stability analysis of fractional epidemic model for two infected classes incorporating hospitalization impact. Physica Scripta, 2024. DOI: 10.1088/1402-4896/ad4692. (SCIE, I.F:2.6)

Md. Jasim Uddin, P. K. Santra, Sarker Md. Sohel Rana, G.S. Mahapatra, Chaotic Dynamics of the Fractional Order Predator-Prey Model Incorporating Gompertz Growth on Prey with Ivlev Functional Response. Chaos Theory and Applications, 2024. (ESCI, I.F:3.7) DOI: 10.51537/chaos.1300754.

K Velmurugan, Smrutisikta Mishra, G.S. Mahapatra, Multi-Criteria Decision-Making Interventions to Reinforce the Reading Skills of the Technical Students. Journal of Engineering Education Transformations, 37(2), 2024. DOI: 10.16920/jeet/2024/v37is2/24086.  (SCIE, I.F:0.4) Publication Date: 2024-01-10

Raja Vijayakumar, G.S. Mahapatra, Marimuthu Dharmalingam, Decision through novel ranking of generalized symmetric pentagonal interval-valued fuzzy criteria for sustainable regional selection. Environment, Development and Sustainability, 2024. DOI: 10.1007/s10668-023-04246-1. (SCIE, I.F:4.7) Publication Date: 2024-04-02.

SHILPI PAL, Avishek Chakraborty, G.S. Mahapatra. A case study of the impact of carbon emissions and inflation on nonlinear dense neutrosophic fuzzy inventory system of varying demand with delayed deterioration. RAIRO- Operations Research, 2024. DOI: 10.1051/ro/2024078. Publication Date: -04-2024.

B.V Baranidharan, G.S. Mahapatra, B.S. Mahapatra & R. Srilalithambigai, Group decision on rationalizing disease analysis using novel distance measure on Pythagorean fuzziness. Complex & Intelligent Systems, 2024. DOI: 10.1007/s40747-024-01376-5.  (SCIE, I.F: 5.8 )

Soumendu Golui, Biplab Sinha Mahapatra, G.S. Mahapatra, A new correlation-based measure on Fermatean fuzzy applied on multi-criteria decision making for electric vehicle selection, Expert Systems with Applications, Volume 237, Part B, 2024. DOI: 10.1016/j.eswa.2023.121605. (SCIE, I.F:8.5)(ISSN: 0957-4174).

M. Dharmalingam, G.S. Mahapatra, Fasika Bete Georgise,  Mahuya Deb, Comparative Ranking Preferences Decision Analysis through a Novel Fuzzy TOPSIS Technique for Vehicle Selection, Journal of Engineering, 2024. DOI: 10.1155/2024/6812801 (SCOPUS)

G. Durga Bhavani, Umakanta Mishra, G.S. Mahapatra, A case study on the impact of green investment with a pentagonal fuzzy storage capacity of two green-warehouse inventory systems under two dispatching policies. Environment, Development and Sustainability, 2023. DOI: 10.1007/s10668-023-04268-9. (SCIE, I.F: 4.9) (ISBN: 1573-2975).

P.K. Santra, G.S. Mahapatra, Dynamics of a Fractional-Order Prey-Predator Reserve Biological System Incorporating Fear Effect and Mixed Functional Response.  Brazilian Journal of Physics, 54, 2023.  DOI: 10.1007/s13538-023-01397-4. (SCIE, I.F: 1.6)  (ISBN: 0103-9733).

R. Prem Kumar, G.S. Mahapatra, Rana D. Parshad, P.K. Santra, Dynamical behavior and sensitivity analysis of a dengue reinfection model for vertical transmission incorporating multiple control strategies. Communications in Mathematical Biology and Neuroscience, 2023. DOI: 10.28919/cmbn/8319. (SCIE, I.F: )  (ISBN: 2052-2541).

B. Maneckshaw, Kash Barker and G. S. Mahapatra, System reliability optimization with two-sided power distributed component failure times. Quality Engineering, 36, 54-56, 2023. DOI: 10.1080/08982112.2023.2222324 (SCIE, I.F:2.0) (ISSN: 0898-2112).

Prem Kumar, R., Basu, S., Santra, P.K., A. A Elsadany, Amr Elsonbaty, G. S. Mahapatra, A Al-khedhairi. Global stability and sensitivity analysis of parameters of Omicron variant epidemic in diverse susceptible classes incorporating vaccination stages. Soft Computing, 28, 4689-4713, 2023. DOI: 10.1007/s00500-023-09170-0. (Scopus, IF:4.1) (ISSN: 1432-7643)

Bhavani, G. D., Mahapatra, G. S., & Kumar, A. A sustainable two-echelon green supply chain coordination model under fuzziness incorporating carbon pricing policies. Environmental Science and Pollution Research, 30, 89197–89237, 2023. DOI: 10.1007/s11356-023-27724-5. (SCI, I.F:5.8) (ISSN: 09441344, 16147499).

Santra, P. K., Mahapatra, G. S., & Kumar, A. Effect of reliability and memory on fractional inventory model incorporating promotional effort on demand. RAIRO-Operations Research, 57(4), 1767-1784, 2023. DOI: 10.1051/ro/2023095. (SCIE, I.F:1.8) (ISSN: 2804-7303).

Rana, S. M. S., Uddin, M. J., Santra, P. K., & Mahapatra, G. S, Chaotic Dynamics and Control of a Discrete-Time Chen System. Mathematical Problems in Engineering, DOI: https://doi.org/10.1155/2023/7795246, 2023. (Scopus, I.F:4.7) (ISSN: 1563-5147).

Kumar, Akhilesh, P. K. Santra, and G. S. Mahapatra. Fractional order inventory system for time-dependent demand influenced by reliability and memory effect of promotional efforts. Computers & Industrial Engineering, 179, 109191, 2023. (SCI, I.F: 7.18).

Ghosh, D., Santra, P. K., & MAHAPATRA, G. S. A three-component prey-predator system with interval number. Mathematical Modelling and Numerical Simulation with Applications, 3(1), 1-16, 2023. DOI:10.53391/mmnsa.1273908.2023.

G. Durga Bhavani, Akhilesh Kumar and G.S. Mahapatra, An Integrated Fuzzy Production Inventory Model for Manufacturer-Retailer Coordination under Simple Carbon Tax System, Journal of Management Analytics, 10(1), 38-88, 2023. DOI: 10.1080/23270012.2023.2179432. (SSCI, I.F: 6.554) (ISSN: 0360-8352)

Biswas, S., Pal, D., & Mahapatra, G. S. Harvesting effect on prey-predator system with strong Allee effect in prey and herd behaviour in both. Filomat, 37(5), 1561-1579, 2023. DOI: 10.2298/FIL2305561B. (SCOPUS, I.F: 0.37) (ISSN: 03545180).

Ghosh, D., Santra, P. K., Makinde, O. D., & Mahapatra, G. S. Dynamics of predator-dependent nonlinear disease transmission in infected prey with diverse functional response. Filomat, 37(13), 4297-4315, 2023. DOI: 10.2298/FIL2313297G. (SCOPUS, I.F: 0.37) (ISSN: 03545180).

R. Prem Kumar, PK Santra, GS Mahapatra,  Global stability and analysing the sensitivity of parameters of a multiple-susceptible population model of SARS-CoV-2 emphasizing vaccination drive, Mathematics and Computers in Simulation, 203, 741-766, 2023. DOI: 10.1016/j.matcom.2022.07.012. (SCI, I. F: 3.601).

G Durga Bhavani, G.S. Mahapatra, Inventory system with generalized triangular neutrosophic cost pattern incorporating maximum life-time-based deterioration and novel demand through PSO, Soft Computing, 27(5), 2385–2402, 2023.  DOI: 10.1007/s00500-022-07769-3. (SCIE, I.F: 3.732).

G Durga Bhavani, Ieva Meidute-Kavaliauskiene, G.S. Mahapatra, Renata Činčikaitė, Pythagorean Fuzzy Storage Capacity with Controllable Carbon Emission Incorporating Green Technology Investment on a Two-Depository System, Energies, 15(23), 9087, 2022. DOI: 10.3390/en15239087.(SCIE, I.F: 3.252)

Dharmalingam Marimuthu, Ieva Meidute-Kavaliauskiene, G.S. Mahapatra, Renata Činčikaitė, Pratik Roy, Aidas Vasilis Vasiliauskas, Sustainable Urban Conveyance Selection through MCGDM Using a New Ranking on Generalized Interval Type-2 Trapezoidal Fuzzy Number, Mathematics, 10(23), 4534, 2022.  DOI: 10.3390/math10234534. (SCIE,I.F:2.592)

B. Baranidharan, Ieva Meidute-Kavaliauskiene, G.S. Mahapatra, Renata Činčikaitė, Assessing the Sustainability of the Prepandemic Impact on Fuzzy Traveling Sellers Problem with a New Fermatean Fuzzy Scoring Function, Sustainability, 14(24), 16560, 2022. DOI: 10.3390/su142416560. (SCIE, I.F: 3.889)

G. Durga Bhavani, Georgise Fasika Bete, G.S. Mahapatra, and B. Maneckshaw, Neutrosophic Cost Pattern of Inventory System with Novel Demand Incorporating Deterioration and Discount on Defective Items Using Particle Swarm Algorithm, Computational Intelligence and Neuroscience, 7683417, 2022. DOI:  10.1155/2022/7683417.  (SCIE, Impact Factor: 3.633)

G.Durga Bhavani, Ieva Meidute-Kavaliauskiene, G.S. Mahapatra, Renata Činčikaitė, A Sustainable Green Inventory System with Novel Eco-Friendly Demand Incorporating Partial Backlogging under Fuzziness, Sustainability, 14(15), 9155, 2022.  DOI: 10.3390/su14159155.  (SCIE, Impact Factor: 3.889)

B.Maneckshaw, G.S. Mahapatra, Multi-objective evolutionary algorithm on reliability redundancy allocation with interval alternatives for system parameters, Neural Computing and Applications, 34(21), 18595-18609, 2022.  DOI: 10.1007/s00521-022-07459-z. (SCIE, I.F: 5.102) (ISSN: 0957-4174).

S Biswas, D Pal, PK Santra, Ebenezer Bonyah, GS Mahapatra, Dynamics of a Three-Patch Prey-Predator System with the Impact of Dispersal Speed Incorporating Strong Allee Effect on Double Prey, Discrete Dynamics in Nature and Society, 7919952, 2022. DOI: 10.1155/2022/7919952, 2022.  (SCIE, I. F: 1.457)

GS Mahapatra, B Maneckshaw, Kash Barker, Multi-objective reliability redundancy allocation using MOPSO under hesitant fuzziness, Expert Systems with Applications,  198, 116696, 2022.  DOI: 10.1016/j.eswa.2022.116696. (SCI, I.F: 8.665) (ISSN: 0957-4174)

B Maneckshaw, GS Mahapatra, Novel fuzzy matrix swap algorithm for fuzzy directed graph on image processing, Expert Systems with Applications, 183, 116291, 2022.  DOI: 10.1016/j.eswa.2021.116291. (SCI, I.F: 6.954) (ISSN: 0957-4174)

P.K. Santra, D Ghosh, GS Mahapatra, Ebenezer Bonyah,  Mathematical Analysis of Two Waves of COVID-19 Disease with Impact of Vaccination as Optimal Control, Computational and Mathematical Methods in Medicine, 2022.DOI: 10.1155/2022/2684055. (SCIE, I.F: 2.809) (ISSN-1748-670X)

D Pal, D Ghosh, PK Santra, GS Mahapatra, Mathematical analysis of a COVID-19 epidemic model by using data driven epidemiological parameters of diseases spread in India. Biophysics, 67(2), 231-244, 2022. DOI:10.1134/S0006350922020154, (SCOPUS)

R Prem Kumar, Sanjoy Basu, PK Santra, D Ghosh, GS Mahapatra, Optimal control design incorporating vaccination and treatment on six compartment pandemic dynamical system, Results in Control and Optimization, 7,1001115, DOI:https://doi.org/10.1016/j.rico.2022.100115, 2022. (SCOPUS) (ISSN- 2666-7207)

D Ghosh, PK Santra, GS Mahapatra, Amr Elsonbaty, AA Elsadany, A discrete-time epidemic model for the analysis of transmission of COVID19 based upon data of epidemiological parameters, The European Physical Journal Special Topics, 243(18), 3461-3470,  DOI: https://doi.org/10.1140/epjs/s11734-022-00537-2, 2022. (SCIE, I.F: 2.891). 

Sanjoy Basu, R Prem Kumar, PK Santra, GS Mahapatra, AA Elsadany, Preventive control strategy on second wave of Covid-19 pandemic model incorporating lock-down effect, Alexandria Engineering Journal, 61(9), 7265-7276, DOI: 10.1016/j.aej.2021.12.066, 2022. (SCIE, I.F: 6.626) (ISSN-1110-0168).

S. Adak, and G.S. Mahapatra, Effect of reliability on multi-item inventory system with shortages and partial backlog incorporating time dependent demand and deterioration, Annals of Operations Research, 315(2), 1551-1571. DOI: https://doi.org/ 10.1007/s10479-020-03694-6, 1-21, 2022. (SCI, I.F:4.820) (ISSN: 0254-5330 (P); 1572-9338 (O))

P.K. Santra, Hasan S Panigoro, GS Mahapatra, Complexity of a Discrete-Time Predator-Prey Model Involving Prey Refuge Proportional to Predator, Jambura Journal of Mathematics, 4(1), 50-63, 2022. DOI: https://doi.org/10.34312/jjom.v4i1.11918 (ISSN-2656-1344).

R. Prem Kumar, Sanjoy Basu, Dipankar Ghosh, Pasanta Kumar Santra, and G.S. Mahapatra, Dynamical analysis of novel COVID-19 epidemic model with non-monotonic incidence function, Journal of Public Affairs, 22(S1) e2754-e2754, DOI: https://doi.org/10.1002/pa.2754, 2022. (SCOPUS(Elsevier),I.F:1.08), (ISSN: 14791854).

Sudip Adak, G.S. Mahapatra, Two-echelon imperfect production supply chain with probabilistic deterioration rework and reliability under fuzziness, Journal of Management Analytics, 9(2), 287-311, DOI: 10.1080/23270012.2021.1882347, 2022. (SSCI, I.F: 6.554) (ISSN: 2327-0012(P) 2327-0039(O))

D. Pal, D. Ghosh, P. K. Santra and G.S. Mahapatra, Mathematical Modeling and Analysis of Covid-19 Infection spreads in India with Restricted Optimal Treatment on Disease Incidence, BIOMATH, 10(1), ID:2106147- ID:2106147 DOI: https://doi.org/10.11145/j.biomath.2021.06.147, 2021. (SCOPUS)

Sudip Adak, G.S. Mahapatra, Two-echelon imperfect production fuzzy supply chain model for reliability dependent demand with probabilistic deterioration and rework. Journal of Intelligent and Fuzzy Systems, 41(2), 3833-3847, DOI: https://doi.org/10.3233/JIFS-200562, 2021. (SCI,I.F:1.851) (ISSN:1064-1246)

Sudip Adak, G.S. Mahapatra, Effect of inspection and rework of probabilistic defective production on Two-layer supply chain incorporating deterioration and reliability dependent demand. International Journal of System Assurance Engineering and Management, 12(3), 565-578, DOI:10.1007/s13198-021-01119-6, 2021. (Scopus)

Askar, D. Ghosh, P.K. Santra, G.S. Mahapatra, and A.A. Elsadany, A fractional-order SITR mathematical model for forecasting of transmission of COVID-19 of India with lockdown effect. Results in Physics, 24(5), 104067, DOI: https://doi.org/10.1016/j.rinp.2021.104067, 2021. (SCI, I.F: 4.565) (ISSN: 2211-3797)

Dipankar Ghosh, P.K. Santra, A.A. Elsadany and G.S. Mahapatra, Predator dependent transmissible disease spreading in prey under Holling type-II functional response, Zeitchrift fur Naturforchung A., 76(6), 479-492, DOI:10.1515/zna-2020-0342, 2021. (SCIE, I.F: 1.712) (ISSN: 1865-7109)

Pooja Rani, and G.S. Mahapatra, Entropy based enhanced particle swarm optimization on multi objective software reliability modelling for optimal testing resources allocation, Software Testing Verification & Reliability, 31(6), e1765,  DOI: 10.1002/stvr.1765, 2021. (SCI, I.F: 1.556) (ISSN:1099-1689)

M. Dharmalingam, and G.S. Mahapatra, Multi-criteria decision-making using a complete ranking of generalized trapezoidal fuzzy numbers, Soft Computing, 25(15), 9859-9871, DOI:10.1007/s00500-020-05322-8, 2021. (SCIE, I.F:3.732) (ISSN: 1432-7643 (P); 1433-7479 (O)).

Prasun K Santra, G.S. Mahapatra, Ganga R Phaijoo, Bifurcation analysis and chaos control of discrete prey–predator model incorporating novel prey–refuge concept, Computational and Mathematical Methods, 3(6), e1185, DOI:10.1002/cmm4.1185,  2021, (SCIE) (ISSN:2577-7408).

G.S. Mahapatra, P.K. Santra, Ebenezer Bonyah, Dynamics on Effect of Prey Refuge Proportional to Predator in Discrete-Time Prey-Predator Model, Complexity, 2021,1-12 ID 6209908. DOI: https://doi.org/10.1155/2021/6209908 ,(SCIE, I.F : 2.121)(ISSN: 1865-7109 )

G.S. Mahapatra, Hasan S. Panigoro, P.K. Santra, Complexity of a Discrete–Time Predator-Prey Model Involving Prey Refuge Proportional to Predator, Jambura Journal of Mathematics, 4(1):50-63, 2022. 

G.S. Mahapatra, P.K. Santra, Ebenezer Bonyah, Dynamics on Effect of Prey Refuge Proportional to Predator in Discrete-Time Prey-Predator Model, Complexity 2021 (5):1-12. (SCIE, Impact Factor:2.833)

B. Maneckshaw, G.S. Mahapatra, Novel fuzzy matrix swap algorithm for fuzzy directed graph on image processing, Expert Systems with Applications, 2021. (SCI, Impact Factor:6.954)

S. Biswas, D. Pal, G. S. Mahapatra, Harvesting effect on Prey--predator system with strong Allee effect in prey and Herd Behaviour in both, FILOMAT 2021, (SCIE, Impact Factor: 0.848) (ISSN: 2406-0933)

Sudip Adak, G.S. Mahapatra, Effect of inspection and rework of probabilistic defective production on Two-layer supply chain incorporating deterioration and reliability dependent demand. International Journal of System Assurance Engineering and Management, DOI:10.1007/s13198-021-01119-6, 2021. (Scopus Index)

Askar, D. Ghosh , P.K. Santra , G.S. Mahapatra, and A.A. Elsadany, A fractional-order SITR mathematical model for forecasting of transmission of COVID-19 of India with lockdown effect. Results in Physics, 2021. (SCIE, Impact Factor: 4.019) (ISSN: 2211-3797)

Dipankar Ghosh, P.K. Santra, A.A. Elsadany and G.S. Mahapatra, Predator dependent transmissible disease spreading in prey under Holling type-II functional response, Zeitchrift fur Naturforchung A., 2021. (SCIE, Impact Factor: 1.355) (ISSN: 1865-7109)

Pooja Rani, and G.S. Mahapatra, Entropy based enhanced particle swarm optimization on multi objective software reliability modelling for optimal testing resources allocation, Software Testing Verification & Reliability, 31(6), e1765  DOI: 10.1002/stvr.1765, 2021.(SCI, Impact Factor: 1.556) (ISSN:1099-1689)

M. Dharmalingam, and G.S. Mahapatra, Multi-criteria decision-making using a complete ranking of generalized trapezoidal fuzzy numbers, Soft Computing, 25(15), 9859-9871, 2021.DOI:10.1007/s00500-020-05322-8, (SCIE, Impact Factor:3.05) (ISSN: 1432-7643 (P); 1433-7479 (O))

R Prem Kumar, Sanjoy Basu, Dipankar Ghosh, Pasanta Kumar Santra, and G.S. Mahapatra, Dynamical analysis of novel COVID-19 epidemic model with non-monotonic incidence function, Journal of Public Affairs, e2754-e2754, 2021, DOI: 10.1002/pa.2754.

Prasun K Santra, G. S. Mahapatra, Ganga R Phaijoo, Bifurcation analysis and chaos control of discrete prey–predator model incorporating novel prey–refuge concept, Computational and Mathematical Methods, (SCIE, Impact Factor:2.238), DOI:10.1002/cmm4.1185, e1185, 2021.

Sudip Adak, G.S. Mahapatra, Two-echelon imperfect production supply chain with probabilistic deterioration rework and reliability under fuzziness, Journal of Management Analytics, DOI: 10.1080/23270012.2021.1882347, 2021. (SCI/SCIE, Impact Factor: 3.526) (ISSN: 2327-0012(P) 2327-0039(O))

S. Adak, and G.S. Mahapatra, Effect of reliability on multi-item inventory system with shortages and partial backlog incorporating time dependent demand and deterioration, Annals of Operations Research, DOI: 10.1007/s10479-020-03694-6, 1-21, 2020. (SCI, Impact Factor:4.854) (ISSN: 0254-5330 (P); 1572-9338 (O))

S. Adak, and G.S. Mahapatra, Imperfect and variable production cost in three-layer supply chain system incorporating deterioration and screening effect, Scientia Iranica, 2020. (SCIE, Impact Factor:0.76) (ISSN: 1026-3098 (P); 2345-3605 (O))

S. Adak, and G.S. Mahapatra, Effect of Reliability on Varying Demand and Holding cost on Inventory System Incorporating Probabilistic Deterioration, Journal of Industrial and Management Optimization, (SCI, Impact Factor:1.366) (ISSN: 1547-5816), Accepted, 2020.

S. Biswas, D. Pal, G.S. Mahapatra, and G.P. Samanta, Dynamics of a Prey-Predator System with Herd Behaviour in Both and Strong Allee Effect in Prey, DOI:10.1134/S0006350920050036,  Biophysics, 65(5), 967–977, 2020.

D.Pal, D.Ghosh, P.K Santra, G.S. Mahapatra, Mathematical analysis of a COVID-19 epidemic model by using data driven epidemiological parameters of diseases spread in India, medRxiv, DOI :10.1101/2020.04.25.20079111,2020.

D. Pal, G.S. Mahapatra, S. K. Mahato, and G.P. Samanta, A Mathematical Model of a Prey-Predator Type Fishery in the Presence of Toxicity with Fuzzy Optimal Harvesting, Journal of Applied Mathematics & Informatics, 38(1-2), 13-36, 2020, (ISSN: 1598-5857(P), 2234-8417(eISSN))

P. Santra, and G.S. Mahapatra, Dynamical study of discrete-time prey predator model with constant prey refuge under imprecise biological parameters, Journal of Biological Systems, (SCI, Impact Factor:0.733) (ISSN (P): 0218-3390; (O): 1793-6470) DOI: 10.1142/S0218339020500114, 2020.

C. Changdar, R.K. Pal, G.S. Mahapatra, A. Khan, A genetic algorithm based approach to solve multi-resource multi-objective knapsack problem for vegetable wholesalers in fuzzy environment, Operational Research, 20(3), 1321-1352, 2020. DOI:10.1007/s12351-018-0392-3,2018. (SCI, Impact Factor:1.759) (ISSN: 1866-1505)

P.K. Santra, G.S. Mahapatra, G.R. Phaijoo, Bifurcation and Chaos of a Discrete Predator-Prey Model with Crowley–Martin Functional Response Incorporating Proportional Prey Refuge, Mathematical Problems in Engineering, ID 5309814, 2020. (SCIE, Impact Factor:1.179) (ISSN: 1024-123X (P), 1563-5147 (O))

P. Roy, G.S. Mahapatra, K.N. Dey, Forecasting of software reliability using neighborhood fuzzy particle swarm optimization based novel neural network, IEEE/CAA Journal of Automatica Sinica, 6 (6), 2019, 1365-1383.(SCIE, Impact Factor: 6.171), (ISSN 2329-9266)

Pooja Rani and G.S.Mahapatra, A novel approach of NPSO on dynamic weighted NHPP model for software reliability analysis with additional fault introduction parameter, Heliyon, 5(7), 2019, e02082. (ISSN: 2405-8440)

Pooja Rani and G.S. Mahapatra, A Neuro-PSO Logistic Model Fitting Algorithm for Software Reliability analysis, Proceedings of the Institution of Mechanical Engineers, Part O:Journal of Risk and Reliability,233(6),925–942, 2019. (SCI, Impact Factor: 1.373)(ISSN: 1748-0078)

D. Pal, S. Biswas, G.S. Mahapatra, and G.P. Samanta, A Prey-Predator Dynamics with Square Root Functional Responses and Strong Allee Effect, Journal of Applied Nonlinear Dynamics, 8(3), 419-433, 2019.(ISSN 2164-6473)

G.S. Mahapatra, Sudip Adak, and K. Kaladhar, A fuzzy inventory model with three parameter Weibull deterioration with reliant holding cost and demand incorporating reliability, Journal of Intelligent and Fuzzy Systems, 36(6), 5731-5744, 2019, (SCI, Impact Factor: 1.426)  (ISSN 1875-8967)

Sudip Adak, G.S. Mahapatra, An inventory model of flexible demand for price, stock and reliability with deterioration under inflation incorporating delay in payment, Journal of Mechanics of Continua and Mathematical Sciences, 13(5), 127-142, 2018. (ISSN: 2454 -7190)

D. Pal, G.S. Mahapatra, G.P.Samanta, New approach for stability and bifurcation analysis on predator–prey harvesting model for interval biological parameters with time delays, Computational and Applied Mathematics, 37(3), 3145-3171, 2018. (SCIE, Impact Factor :0.863) (ISSN 0101-8205)

Pooja Rani and G.S. Mahapatra, Neural network for software reliability analysis of dynamically weighted NHPP growth models with imperfect debugging, Software Testing Verification & Reliability, 28 (5), 2018.(SCI, Impact Factor: 1.556) (ISSN:1099-1689)

D. Pal, G.S. Mahapatra, G.P. Samanta, A Study of Bifurcation of Prey–Predator Model with Time Delay and Harvesting using Fuzzy Parameters, Journal of Biological Systems, 26 (02), 2018, 339-372. (SCIE, Impact Factor: 0.649) (ISSN: 1793-6470)

D. Pal, P. Santra, G.S. Mahapatra, Predator-Prey dynamical behavior and stability analysis with square root functional response, International Journal of Applied and Computational Mathematics, 3 (3), 2017, 1833-1845. (ISSN: 2199-5796)

C. Changdar, G.S. Mahapatra and R.K. Pal, A modified ant colony optimization based approach to solve sub-tour constant travelling salesman problem, International Journal Mathematics in Operational Research, 11(3), 2017, 310-331. (ISSN: 1757-5869).

D. Pal, G.S. Mahapatra, G.P. Samanta, Selective harvesting of two competing fish species in the presence of toxicity with time delay, Applied Mathematics and Computation, 313, 74-93, 2017.(ISSN: 0096-3003)(SCI, Impact Factor :2.300)

C. Changdar, R.K. Pal and G.S. Mahapatra, A genetic ant colony optimization based algorithm for solid multiple travelling salesmen problem in fuzzy rough environment, Soft Computing, 21(6), 2017, 4661–4675. (SCI, Impact Factor :1.630) (ISSN: 1433-7479 (O) ISSN: 1432-7643 (P))

D. Pal, G.S. Mahapatra, G.P. Samanta, Parameter uncertainty in bio-mathematical model described by one-prey two-predator system with mutualism, International Journal of Biomathematics, 10 (6), 1750082, 2017. (SCI, Impact Factor :0.938) (ISSN: 1793-7159)

P. Roy, G.S. Mahapatra, and K.N. Dey, An Efficient Particle Swarm Optimization-Based Neural Network Approach for Software Reliability Assessment, International Journal of Reliability, Quality and Safety Engineering, 24(4), 2017, 1750019. (ISSN: 0218-5393) (SCIE, Impact Factor)

D. Pal, P. Santra, G.S. Mahapatra, Dynamical behavior of three species predator--prey system with mutual support between non refuge prey, Ecological Genetics and Genomics, 3-5, 1-6, 2017. (Elsevier, ISSN: 2405-9854)

G.S. Mahapatra, Sudip Adak, T.K. Mandal, and Shilpi Pal, Inventory model for deteriorating items with time and reliability dependent demand and partial backorder, International Journal of Operational Research,29 (3), 344-359, 2017. (ISSN: 1745-7653 (O) ISSN: 1745-7645 (P)).

D. Pal, G.S. Mahapatra, Parametric Functional Representation of Interval Number with Arithmetic Operations, International Journal of Applied and Computational Mathematics, 3 (2), 459–469, 2017. (ISSN: 2349-5103 (P), 2199-5796 (O)).

Shilpi Pal, and G.S. Mahapatra, A manufacturing-oriented supply chain model for imperfect quality with inspection errors, stochastic demand under rework and shortages, Computers & Industrial Engineering, 106, 299–314, 2017. (SCI, Impact Factor: 2.623) (ISSN: 0360-8352).

G.S. Mahapatra, B.S. Mahapatra, and P.K. Roy, A new concept for fuzzy variable based non-linear programming problem with application on system reliability via Genetic Algorithm approach, Annals of Operations Research, 247 (2), 853–866, 2016. (SCI, Impact Factor: 4.854) (ISSN: 0254-5330 (P) ISSN: 1572-9338 (O))

P. Santra, G.S. Mahapatra and D. Pal, Prey predator nonlinear harvesting model with functional response incorporating prey refuge, International Journal of Dynamics and Control, 4 (3) 293-302, 2016. (ISSN: 2195-268X (P) ISSN: 2195-2698 (O)

D. Pal, G.S. Mahapatra, G.P. Samanta, Stability and bionomic analysis of fuzzy prey-predator harvesting model in presence of toxicity: a dynamic approach, Bulletin of Mathematical Biology.78 (7), 1493-1519, 2016, (SCI, Impact Factor :1.326) (ISSN: 0092-8240 (P) 1522-9602 (O))

P. Santra, G.S. Mahapatra and D. Pal, Analysis of deferential-algebraic prey predator dynamical model with super predator harvesting on economic perspective, International Journal of Dynamics and Control, 4 266-274, 2016. (ISSN: 2195-268X (P) 2195-2698 (O))

S Pal, G.S. Mahapatra, GP Samanta, A Three-Layer Supply Chain EPQ Model for Price-and Stock-Dependent Stochastic Demand with Imperfect Item Under Rework, Journal of Uncertainty Analysis and Applications, 4 (1), 10, 2016. (ISSN: 2195-5468).

D. Pal, G.S. Mahapatra, Effect of toxic substance on delayed competitive allelopathic phytoplankton system with varying parameters through stability and bifurcation analysis. Chaos, Solitons& Fractals, 87,109-124, 2016. (ISSN: 0960-0779) (SCI, Impact Factor :1.611)

C. Changdar, G.S. Mahapatra and R.K. Pal, A Modified Genetic Algorithm Approach to Solve Constrained Solid TSP with Time Window using Interval Valued Parameter, International Journal of Operational Research, 26(4), 2016, 389-421, (ISSN: 1745-7653 (O) ISSN: 1745-7645 (P))

D. Pal, G.S. Mahapatra and G.P. Samanta, Effects of fuzzy harvesting on logistic growth models for uncertain ecological parameter, Journal of Interdisciplinary Mathematics, 19 (3), 2016, 433-451. (ISBN 2169-012X)

P. Santra and G.S. Mahapatra, Prey-predator model for Optimal Harvesting with Functional Response Incorporating Prey Refuge, International Journal of Biomathematics,09, 2016, ID1650014, (SCI, Impact Factor:0.938) (ISSN: 1793-7159)

D. Pal and G. S. Mahapatra, Dynamic behavior of a predator–prey system of combined harvesting with interval-valued rate parameters, Nonlinear Dynamics, 83, 4, 2016, 2113–2123.(ISSN: 0924-090X (P) 1573-269X (O)) (SCI, Impact Factor:4.339)

D. Pal, G.S. Mahapatra and G.P. Samanta, Bifurcation analysis of predator–prey model with time delay and harvesting efforts using interval parameter, International Journal of Dynamics and Control, 3(3), 2015, 199-209, (ISSN: 2195-268X (P) ISSN: 2195-2698 (O)).

G.S. Mahapatra, B.S. Mahapatra and P.K. Roy, Fuzzy Variable based Fuzzy Non-linear Programming Approach for Optimization of Complex System Reliability, Journal of Intelligent and Fuzzy Systems, 28, 2015, 1899-1908. (SCI, Impact Factor: 1.426) (ISSN 1875-8967)

P. Roy, G.S. Mahapatra and K.N. Dey, Neuro-genetic approach on logistic model based software reliability prediction, Expert Systems With Applications,42, 2015, 4709–4718. (ISSN: 0957-4174) (SCI, Impact Factor 2014: 6.954)

D. Pal, G.S. Mahapatra and G.P. Samanta, Stability and bionomic analysis of fuzzy parameter based prey-predator harvesting model using UFM, Nonlinear Dynamics, 79, 3, 2015, 1939–1955.(ISSN: 0924-090X (P) 1573-269X (O)) (SCI, Impact Factor:4.339)

S. Pal, G.S. Mahapatra and G.P. Samanta, A production inventory model for deteriorating item with ramp type demand allowing inflation and shortages under fuzziness, Economic Modelling, 46, 2015, 334-345.(ISSN: 0264-9993)(SCI, Impact Factor:1.481)

C. Changdar, G.S. Mahapatra and R.K. Pal, An Improved Genetic Algorithm Based Approach to Solve Constrained Knapsack Problem in Fuzzy Environment, Expert Systems with Applications, 42(4), 2015, 2276–2286. (ISSN: 0957-4174).(SCI, Impact Factor: 6.954)

S. Pal, G.S. Mahapatra and G.P. Samanta, An Inventory Model of Price and Stock dependent Demand Rate with Deterioration under Inflation and Delay in payment, International Journal of System Assurance Engineering and Management, 5(4), 2014, 591-601. (ISSN: 0976-4348 (O), ISSN: 0975-6809 (P))

G.S. Mahapatra, B.S. Mahapatra and P.K. Roy, Network Reliability Evaluation for Fuzzy Components: An Interval Programming Approach, Journal of Intelligent and Fuzzy Systems,27, 2014, 743–751. (ISSN: 1875-8967) (SCI, Impact Factor: 1.426)

D. Pal and G.S. Mahapatra, A bioeconomic modeling of two-prey and one-predator fishery model with optimal harvesting policy through hybridization approach, Applied Mathematics and Computation, 242, 2014, 748-763. (ISSN: 0096-3003) (SCI, Impact Factor: 4.091)

P. Roy, Pooja Rani, G.S. Mahapatra, S.K. Pandey and K.N. Dey, Robust feedforward and recurrent neural network based dynamic weighted combination models for software reliability prediction, Applied Soft Computing, 22, 2014, 629–637.(ISSN: 1568-4946)(SCI, Impact Factor:6.725)

S. Pal, G.S. Mahapatra and G.P. Samanta, An EPQ model of ramp type demand with Weibull deterioration under inflation and finite horizon in crisp and fuzzy environment, International Journal of Production Economics, 156, 2014, 159–166.(ISSN: 0925-5273)(SCI, Impact Factor:7.885)

P. Roy, G.S. Mahapatra and K.N. Dey, An NHPP software reliability growth model with imperfect debugging and error generation, International Journal of Reliability, Quality and Safety Engineering,21(2), 2014. 1450008. (Print ISSN: 0218-5393 Online ISSN: 1793-6446) (SCIE, Impact Factor)

P. Roy, B.S. Mahapatra, G.S. Mahapatraand P. K. Roy, Entropy based region reducing genetic algorithm for reliability redundancy allocation in interval environment, Expert Systems with Applications,41(14), 2014, 6147–6160. (ISSN: 0957-4174)  (SCI, Impact Factor:6.954)

G.S. Mahapatra and T.K. Roy, Reliability Optimization of Complex System using Intuitionistic Fuzzy Optimization Technique, International Journal of Industrial and Systems Engineering, 16(3), 2014, 279-295. (ISSN: 1748-5037)

C. Changdar, G.S. Mahapatra and R.K. Pal, An Efficient Genetic Algorithm for Multi-Objective Solid Travelling Salesman Problem under Fuzziness, Swarm and Evolutionary Computation, 15, 2014, 27-37. (ISSN: 2210-6502) (SCI, Impact Factor: 3.818)

P. Roy, G.S. Mahapatraand K.N. Dey, An S-shaped software reliability model with imperfect debugging and improved testing learning process, International Journal of Reliability and Safety, 7(4), 2013, 372 –387.(ISSN: 1479-3903 (O) ISSN: 1479-389X (P))

C. Changdar, G.S. Mahapatraand R.K. Pal, An ant colony optimization approach for binary knapsack problem under fuzziness, Applied Mathematics and Computation, 223, 2013, 243-253. (ISSN: 0096-3003)   (SCI, Impact Factor: 4.091)

C. Changdar, G.S. Mahapatra and R.K. Pal, Solving 0-1 knapsack problem using continuous  ACO algorithm, Int. J. of Computational Intelligence Studies,2 (3/4), 2013, 333-349. (ISSN: 1755-4985 (O) ISSN: 1755-4977 (P))

G.S. Mahapatra, T.K. Mandal and G.P. Samanta, EPQ model with fuzzy coefficient of objective and constraint via parametric geometric programming, International Journal of Operational Research, 17(4), 2013,436-448. (ISSN: 1745-7653 (O) ISSN: 1745-7645 (P))

G.S. Mahapatra and T.K. Roy, Intuitionistic fuzzy number and its arithmetic operation with application on system failure, Journal of Uncertain Systems, 7 (2), 2013, 92-107. (ISSN: 1752-8909 (P). ISSN: 1752-8917 (O))

D. Pal, G.S. Mahapatra and G.P. Samanta, Quota harvesting model for a single species population under fuzziness, International Journal of Mathematical Sciences, 12 (1-2), 2013, 33-46. (ISSN: 0972-754X)

D. Pal, G.S. Mahapatra and G.P. Samanta, Optimal harvesting of prey-predator system with interval biological parameters: A bioeconomic model, Mathematical Biosciences, 241, 2, 2013, 181–187. (ISSN: 0025-5564)  (SCI, Impact Factor:1.5)

D. Pal, G.S. Mahapatra and G.P. Samanta, Proportional harvesting model with fuzzy intrinsic growth rate and harvesting quantity, Pacific-Asian Journal of Mathematics, 6(2), 2012, 199-213. (ISSN: 0973-5240)

G.S. Mahapatra and T.K. Roy, Reliability Evaluation of Complex System with Fuzzy Reliability of Components using Interval Nonlinear Programming, Electronic Journal of Applied Statistical Analysis, 5(2), 2012, 151-163. (ISSN: 2070-5948(P) ISSN: 2070-5948(O))

G.S. Mahapatra, T.K. Mandal and G.P. Samanta, Fuzzy parametric geometric programming with application in fuzzy EPQ model under flexibility and reliability consideration, Journal of Information and Computing Science, 7(3), 2012, 223-234. (ISSN: 1746-7659)

G.S. Mahapatra, T.K. Mandal and G.P. Samanta, An EPQ model with imprecise space constraint based on intuitionistic fuzzy optimization technique, Journal of Multiple-Valued Logic and Soft Computing, 19(5-6), 2012, 409-423. (ISSN: 1542-3980(P) ISSN: 1542-3999(O))(SCI, Impact Factor:0.667)

G.S. Mahapatra, and P. Roy, Modified Jelinski-Moranda software reliability model with imperfect debugging phenomenon, International Journal of Computer Applications, 48(18), 2012, 38-46. (ISSN: 0975 - 8887)

G.S. Mahapatra, and T.K. Mandal, Posynomial Parametric Geometric Programming with Interval Valued Coefficient, Journal of Optimization Theory and Applications, 154 (1), 2012, 120-132. (ISSN: 0022-3239(P) ISSN: 1573-2878(O))  (SCI, Impact Factor:1.406)

G.S. Mahapatra, and P. Roy, A Genetic Algorithm Approach for Reliability of Bridge Network in Fuzzy System, Journal of Information and Computing Science, 6(4), 2011, 243-254. (ISSN: 1746-7659)

B.S. Mahapatra, G.S. Mahapatra and P.K. Roy, Reliability analysis using weakest t-norm on Triangular Intuitionistic Fuzzy Set, Bulletin of the Calcutta Mathematical  Society, 103(5), 2011, 433-444. (ISSN: 0008-0659)

G.S. Mahapatra, T.K. Mandal and G.P. Samanta, A Production Inventory Model with Fuzzy Coefficients Using Parametric Geometric Programming Approach, International Journal of Machine Learning and Cybernetics, 2(2), 2011, 99-105. (ISSN: 1868-8071(P)  ISSN: 1868-808X (O))(SCI, Impact Factor:3.844)

G.S. Mahapatra and T.K.Roy, Redundancy Allocation for Optimum Reliability of Series-Parallel System using Generalized Fuzzy Number, Tamsui Oxford Journal of Information and Mathematical Sciences, 27(1), 2011, 1-20. (ISSN 2222-4424 (P) ISSN 2222-4432 (O))

G.S. Mahapatra, B.S. Mahapatra and P.K. Roy, Fuzzy Decision-making on Reliability of Series System: Fuzzy Geometric Programming Approach, Annals of Fuzzy Mathematics and Informatics, 1(1), 2011, 107-118. (ISSN 2093-9310)

G.S. Mahapatra and B.S. Mahapatra, Intuitionistic Fuzzy Optimization Technique on Reliability Redundancy Optimization with Entropy Function, International Journal of Performability Engineering, 7(2), 2011, 155-164. (ISSN: 0973-1318)

B.S. Mahapatra and G.S. Mahapatra, Reliability and Cost Analysis of Series System Models using Fuzzy Parametric Geometric Programming, Fuzzy Information and Engineering, 2 (4), 399-411,2010.(ISSN: 1616-8658 (P) ISSN: 1616-8666 (O))

G.S. Mahapatra, M. Mitra and T.K. Roy, Intuitionistic fuzzy multi-objective mathematical programming on reliability optimization model, International Journal of Fuzzy Systems, 12(3), 2010, 260-267. (ISSN: 1562- 2479) (SCI, Impact Factor:0.941)

G.S. Mahapatra and B.S. Mahapatra, Intuitionistic Fuzzy Fault Tree Analysis using Intuitionistic Fuzzy Numbers, International Mathematical Forum, 5 (21), 2010, 1015 - 1024. (ISSN: 1312-7594)

G.S. Mahapatra, B.S. Mahapatra and T.K. Roy, System reliability assessment with constant failure rate of components under fuzziness, The Journal of Fuzzy Mathematics, 18 (3), 2010, 553 - 566. (ISSN:  1066-8950)

G.S. Mahapatra and T.K. Roy, Generalized Piece-wise Linear Fuzzy Number with its Application in Redundancy for Optimum Reliability of Series-parallel System, The Journal of Fuzzy Mathematics, 18 (3), 2010, 541-552. (ISSN:  1066-8950)

G.S. Mahapatra, Reliability Optimization of entropy based series-parallel system using Global Criterion Method, Intelligent Information Management, 1 (3), 2009, 145-149. (ISSN: 2150-8194 (P) ISSN: 2150-8208 (O))

G.S. Mahapatra and T.K. Roy, Reliability Evaluation using Triangular Intuitionistic Fuzzy Numbers Arithmetic Operations, International Journal of Computational and Mathematical Sciences, 3 (5), 2009, 225-232. (ISSN: 2070- 3910)

G.S. Mahapatra and T.K. Roy, Redundancy allocation for optimum system reliability with entropy objective function using fuzzy multi-objective mathematical programming, International Journal of Fuzzy Systems and Rough Systems, 2 (1), 2009, 1-9. (ISSN: 0974-858X)

G.S. Mahapatra, and T.K. Roy, Single and Multi Container Maintenance Model: A Fuzzy Geometric Programming Approach, Journal of Mathematics Research, 1(2), 2009, 47-60. (ISSN 1916-9795 (P)   ISSN 1916-9809 (O))

G.S. Mahapatra, B.S. Mahapatra and T.K. Roy, Fuzzy system reliability analysis when constant failure rate of components is fuzzy number, Advances in Fuzzy Sets and Systems, 4 (1), 2009, 85-105. (ISSN: 0973-421X)

G.S. Mahapatra and T.K. Roy, Multi-objective intuitionistic fuzzy nonlinear programming and its application in reliability optimization model, International Journal of Mathematical Modeling, Simulation and Application, 2(2) 2009, 137-149. (ISSN : 0973 - 8355)

G.S. Mahapatra and T. K. Roy, Optimal Fuzzy Reliability for a Series System with Cost Constraints using Fuzzy Geometric Programming, Tamsui Oxford Journal of Management Sciences,22 (2), 2006, 51-61. (ISSN 0258-5375)

G.S. Mahapatra and T.K. Roy, Fuzzy Multi-Objective Mathematical Programming on Reliability Optimization Model, Applied Mathematics and Computation, 174 (1), 2006, 643-659. (ISSN: 0096-3003)  (SCI, Impact Factor: 4.091)

Book / Book Chapter

P.K. Santra, and G.S. Mahapatra, Discrete Prey–Predator Model with Square Root Functional Response Under Imprecise Biological Parameters, DOI: 10.1007/978-981-15-3615-1_14, In book: Mathematical Modeling and Computational Tools, 2020. (ISBN: 978-981-15-3615-1)

S. Adak, and G.S. Mahapatra, An Inventory Model of Time and Reliability Dependent Demand with Deterioration and Partial Backordering Under Fuzziness, DOI: 10.1007/978-3-030-34152-7_47, In book: Recent Advances in Intelligent Information Systems and Applied Mathematics, 2020. (ISBN: 978-3-030-34152-7)

Engineering Mathematics-I, (Text book of Engineering Mathematics, volume-1 for undergraduate engineering student), Aryan Publishing House, Kolkata-700084, 2011, ISBN: 978-81-921653-6-1, Authors: G.S. Mahapatra& J. Dutta

Engineering Mathematics-II, (Text book of Engineering Mathematics, volume-2 for undergraduate engineering student), Aryan Publishing House, Kolkata-700084, 2012, ISBN: 978-81-921653-8-7, Authors: G.S. Mahapatra& J. Dutta

Research Student

Conference Proceeding

D. Ghosh, P. K. Santra and G.S. Mahapatra, Dynamical behaviour of three species system with competition between predators under interval biological parameters, Proceedings of AACMME-2021, NIT Rourkela, February 24-26th ,  Springer.

M. Dharmalingam, G.S. Mahapatra, Fuzzy logistic differential equation with application using generalized trapezoidal fuzzy number, AIP Conference Proceedings, Vol. 2261, 030014 (2020); https://doi.org/10.1063/5.0017168.

D. Ghosh, P. Santra, and G.S. Mahapatra, Fear effect on a discrete-time prey predator model with imprecise biological parameters, International Conference on Mathematical Sciences and Applications (ICMSA-2019), Saint George Hotel, 58 Goede Hoop Ave, Doornkloof, Pretoria, 25-27thSeptember, AIP Conference Proceedings 2246(1):020030, DOI: 10.1063/5.0014479

S. Adak, and G.S. Mahapatra, An inventory model of time and reliability dependent demand with deterioration and partial backordering under Fuzziness, International Conference on Information Technology and Applied Mathematics (ICITAM 2019), 610-627, 863, March 7-9, 2019, at Haldia Institute of Technology.

P. Santra, and G.S. Mahapatra, Discrete prey predator model with square root functional response under imprecise biological parameters, International Conference on Applied and Computational Mathematics,320, 211-225, November 23-25, 2018 at IIT Kharagpur.

P. Roy, G.S. Mahapatraand K.N. Dey, Particle swarm optimization based feedforward neural network approach for software reliability prediction, Proceeding of 2nd International conference on computing and systems (ICCS)-2013, University of Burdwan,Burdwan, 21-22 September, 2013.

G.S. Mahapatra and B.S. Mahapatra, Fuzzy EPQ Model with Process Reliability Consideration under Space Constraint: A Fuzzy Parametric Geometric Programming Approach, Proceedings of National Conference on Applied Mathematics, B.S. Abdur Rahman University, Chennai, India, 28-29th January 2010, 103-109.

G.S. Mahapatra, and T.K.Roy, Reliability Evaluation using Triangular Intuitionistic Fuzzy Numbers Arithmetic Operations, Proceedings of World Academy of Science, Engineering and Technology, Malaysia, 38, 2009,  3(2), 350-357.

Conference /Workshop /FDP organized

“National Conference on Numerical Analysis and Applications” from January 6 - 7, 2022 at National Institute of Technology Puducherry. (As an Organizing Secretary)

5-days “FDP on Applied Science and Humanities” from December 14 - 18, 2020 at National Institute of Technology Puducherry, Karaikal. (As Coordinator)

National Workshop on Mathematical Modeling and Computational Techniques, 15th July 2017 at National Institute of Technology Puducherry, Karaikal.  (As Coordinator)

Participation in seminar/conference/workshop & paper presented

Membership of professional bodies

Journal editorial board member :

  International Journal of Innovative Technology & Adaptive Management

Reviewer of Journal

(i) Acta Mathematica Scientia, (ii) Mathematical Problem in Engineering,  (iii) Applied Mathematics-A Journal of Chinese Universities, 

  (iv)    Applied Mathematics Letters, (v) Applied Mathematical Modelling, (v)  Applied Mathematical Modelling,

  (vi)     Applied Soft Computing,   (vi)       Applied Soft Computing,  (vii)   Chaos, Solitons& Fractals,

(viii)      Computers & Industrial Engineering, (ix)   Computational and Mathematical Methods in Medicine,

(x)    Differential Equations and Dynamical Systems,  (xi)    European Journal of Operational Research

  (xii)      Expert Systems with Applications,    (xiii)    Electronic Journal of Applied Statistical Analysis, (xiv)   ISA Transactions,

(xv)  International Journal of Bifurcation and Chaos, (xvi)   International Journal of Differential Equations, 

(xvii)    International Journal of Fuzzy Systems,  (xviii)   International Journal of Production Research, 

  (xix) International Journal of Biomathematics, (xx) International Journal of Operational Research, 

 (xxi) Journal of Advanced Transportation, (xxii)   Journal of Applied Mathematics,  (xxiii)  Journal of Intelligent Systems,

(xxiv)  Journal of Optimization Theory and Applications, (xxv)   Neural Computing and Applications, 

    (xxvi) Operational Research: An International Journal, (xxvii)  RAIRO- Operations Research,  

(xxviii) Swarm and Evolutionary Computation, (xxix) Software Testing, Verification & Reliability,     (xxx)   Scientia Iranica,

              (xxxi)   IEEE Tran. of Reliability, (xxxii)  Production & Manufacturing Research,  (xxxiii) American Mathematical Society

Delivered Invited Talks

Resource person and invited Talk, NIT Puducherry, 14-18 December 2020 

Invited Talk, at 2nd National Conference on RECENT ADVANCES IN MATHEMATICS-NCRAM’19,  St.Peter’s Institute of Higher Education & Research, Chennai, 12-13 July 2019

Resource Person, Refresher Course, Pondicherry University, August 2018

Resource person and invited Talk, National Workshop on Computing and Mathematical Simulation (CMS-2018), AAGASC, Karaikal-609605, 27 March 2018 

Conference /Workshop/Seminar organizing /Program committee

Member of Technical Program Committee, The 2015 International Conference on Fuzzy System and Data Mining, December 12th-15th, 2015 Shanghai.

Member of Technical Program Committee, The 2nd International Conference on Fuzzy Systems and Data Mining (FSDM 2016), 11-14th December 2016, Macau.

Member of Technical Program Committee, The 3rd International Conference on Fuzzy Systems and Data Mining, 24-27th November 2017, National Dong Hwa University, Hualien, Taiwan.

National Workshop on Mathematical Modeling and Computational Techniques, at Department of Mathematics, National Institute of Technology Puducherry, 15th July 2017.

International Program Committee: International Conference on High Performance Computing & Simulation (HPCS 2017),   July 17 – July 21, 2017, Genoa, Italy