Publications

Publications

1. M Kumar, S Abbas, Fractal dimension and control of Julia set generated by the discrete competitive model, Numerical Algorithms, 2025, in press.
2. M Kumar, S Abbas, Fractal dimension and control of Julia set of discrete fractional tumor-immune model, Discrete and Continuous Dynamical Systems - S, in press, 2025.
3. D Agrawal, S Abbas, Synchronization of WPAA -Solution of Clifford-Valued Neural Network with Multiple Time-Varying Delays and Impulse Effects on Hybrid Domains, Acta Applicandae Mathematicae, 197 (2025), Paper No. 1, 29 pp.
4. S Abbas, VE Fedorov, M Kostic, Weyl \rho Almost Periodic Functions in Locally Convex Spaces, Lobachevskii Journal of Mathematics, 46 (4), 1776–1795, 2025.
5. GA Satpute, S Abbas, Inverse Coefficient Problems for Dynamic Equations on Time Scales, Mathematical Methods in the Applied Sciences, 48 (2025), no. 9, 10114–10127.
6. S Salwahan, S Abbas, A Tridane, Optimal control of a periodically switched epidemic model, International Journal of Dynamics and Control 13, 98, 2025.
7. SK Mishra, SR Grace, M Ayachi, S Abbas, Lyapunov exponent and existence of T-periodic positive solution of stochastic Nicholson model with discrete and distributed delays, Rendiconti del Circolo Matematico di Palermo Series 2 74 (1), 1-20, 2025.
8. GA Satpute, M Kostić, S Abbas, Inverse problems for a system of dynamic equations on time scales, The Journal of Analysis, 33 (2025), no. 4, 1547–1563.
9. N Chanauria, S Abbas, Impact of Family Education on Online Gambling Addiction: An Age-Structured Modelling Approach, Journal of Mathematical Analysis and Applications 545 (2), 2025.
10. S Abbas, M Kostic, Metrical Weyl almost automorphy and applications, Advances in Pure and Applied Mathematics, 16 (2), 8-28, 2025.
11. M Kumar, S Dhama, FA Alqarni, S Abbas, KA Aldwoah, Mathematical analysis and optimal control of age-structured social interaction model with law enforcement, Mathematical Methods in the Applied Sciences, 48 (3), 3712-3725, 2025.

12. S Salwahan, S Abbas, A Tridane, Optimal switching of vaccination for an infectious disease model, Electronic Journal of Differential Equations 2024 (2024), 59-13.
13. M Ayachi, S Abbas, P-mean (mu1,mu2)-pseudo almost periodic processes and application to integro-differential stochastic evolution equations, Electronic Journal of Differential Equations 2024 (24), 1-26.
14. M Kumar, S Abbas, Adaptive synchronization and anti-synchronization of Julia sets generated by the competitive model, Physica Scripta 99 (11), 2024.
15. S Salwahan, S Abbas, Dynamical analysis of a switched social behavior model, Sao Paulo Journal of Mathematical Sciences 18, 1861--1888, 2024.
16. S Abbas, SR Grace, JR Graef, SS Negi, Oscillation of second-order non-canonical non-linear dynamic equations with a sub-linear neutral term, Differential Equations and Dynamical Systems 32 (3), 819-829, 2024.
17. D. Agrawal, S. Abbas, Existence of Periodic Solutions for a Class of Dynamic Equations with Multiple Time Varying Delays on Time Scales, Qualitative Theory of Dynamical Systems volume 23, Article number: 32 (2024)
18. S Chandra, S Abbas, Y Liang, A Note on Fractal Dimension of Riemann-Liouville Fractional Integral, Fractals 32 (2), 14, 2024.
19. S Dhama, S Castillo, S Abbas, M Pinto, Existence and Roughness of Nonuniform Exponential Dichotomies on Time Scales, Qualitative Theory of Dynamical Systems 23, pages: 36, 2024.
20. D. Agrawal, S. Dhama, M. Kostic, S. Abbas; Periodicity, Stability and Synchronization of Solutions of Hybrid Coupled Dynamic Equations with Multiple Delays, Mathematical Methods in the Applied Sciences, 47 (2024), no. 9, 7616–7636.
21. S Salwahan, S Abbas, A Tridane, Containing an epidemic in the case of running out of treatment: A switched system approach, Nonlinear Analysis Modelling and Control, 29 (2024), no. 4, 641–657.
22. SR Grace, S Abbas, New oscillation criteria of nonlinear second order delay dynamic equations with sublinear neutral term, ANNALI DELL'UNIVERSITA'DI FERRARA,  70, pages 1433–1443, (2024).
23. S. Abbas, SR Grace, JR Graef, SS Negi, Oscillation of second-order non-canonical non-linear dynamic equations with a sub-linear neutral term, Differential Equations and Dynamical Systems, 32 (3), 819-829, 2024.
24. A Das, B Hazarika, S Abbas, NH Kumar, A Deep; Existence of solutions for the fractional hybrid differential equation via measure of noncompactness; Rocky Mountain Journal of Mathematics,  54 (2), 439--449, 2024.
25. N. Chanauria, S. Abbas, Stability analysis of an age-structured SIR model with nonlocal diffusion and indirect contacts, Discrete and Continuous Dynamical Systems - B, 29 (6), 2532-2548, 2024.

26. M. Kumar, S. Abbas, Stability and optimal control of age-structured cell-free and cell-to-cell transmission model of HIV, Mathematical Methods in the Applied Sciences,  46(17),  2023, 18336-18353.
27. S Dhama, S Abbas, M Pinto, S Castillo, S Tomar, Weighted Pseudo Almost Automorphic Solution for Abstract Dynamic Equations under Translation and Non-Translation Time Scales with Shift Operators and Unbounded Graininess, Advances in Operator Theory, 8, Article number: 66 (2023).
28. SR Grace, S. Abbas, S.S. Negi, Study of Oscillation Criteria of Odd-Order Differential Equations with Mixed Neutral Terms, Mathematica Slovaca 73 (5), 1231-1242, 2023.
29. Said R. Grace, G. N. Chhatria, S. Abbas, Nonlinear Second Order Delay Dynamic Equations on Time Scales: New Oscillatory Criteria, Qualitative Theory of Dynamical Systems, 22, Article number: 102, 2023.
30. S. Bugalia, J.P. Tripathi, S. Abbas, H. Wang, General theory for significance of culling in two-way disease transmission between humans and animals, Journal of Biological Systems, 31 (3), 791-832, 2023.
31. M Kumar, S Abbas, A Tridane; Optimal control and stability analysis of an age-structured SEIRV model with imperfect vaccination; Mathematical Biosciences and Engineering 20 (8), 14438-14463, 2023.
32. S Salwahan, S Abbas, A Tridane, MA Hajji; Optimal control of the treatment and the vaccination in an epidemic switched system using polynomial approach, Alexandria Engineering Journal 74 (1), 187-193, 2023.
33. P Karthikeyan, K Venkatachalam, S Abbas; Stability results on non-instantaneous impulsive fractional integro-differential equations with multipoint boundary conditions; Filomat 37 (19), 6603-6615, 2023.
34. KP Das, S Abbas, K Agnihotri, H Kaur; Role of alternative food and different competition coefficients in controlling chaos in an eco-epidemiological model with disease in prey; Nonlinear Studies 30 (2), 529-549, 2023.
35. S. Chandra, S. Abbas, Y. Liang, On the box dimension of Weyl-Marchaud derivative and linearity effect, Fractals, Vol. 31, No. 05, 2350058 (2023).
36. GA Satpute, S. Abbas, Parameter Identification for Vector Dynamic Equations on Arbitrary Time Scales, Acta Applicandae Mathematicae 183 (1), 1-19, 2023.
37. M. Kumar, S. Abbas, Modelling and prevention of crime using age-structure and law enforcement, Journal of Mathematical Analysis and Applications, 519 (2), 126849, 2023.
38. M Kumar, S Abbas, Diffusive size-structured population model with time-varying diffusion rate, Discrete and Continuous Dynamical Systems-B, 28 (2), 1414-1435, 2023.
39. M. Kumar, S. Abbas, R. Sakthivel, Analysis of Diffusive Size-Structured Population Model and Optimal Birth Control, Evolution Equations and Control Theory, 12 (2), 423-445, 2023.
40. S. Chandra, S. Abbas, S. Verma, Bernstein super super fractal interpolation function for countable data systems, Numerical Algorithm, 92, 2457–2481 (2023).

41. S. Abbas, Multinomial theorem procured from partial differential equation, Appl. Math. E-Notes, 22(2022), 457-459.
42. L. Shaikhet,  S. Abbas, Novel stability conditions for some generalization of Nicholson’s blowflies model with stochastic perturbations, ANZIAM, Volume 64 , Issue 4 , October 2022 , pp. 394 - 405.
43. S. Chandra, S. Abbas, ON FRACTAL DIMENSIONS OF FRACTAL FUNCTIONS USING FUNCTION SPACES,  Bull. Aust. Math. Soc.,  106(3) , December 2022 , pp. 470 - 480.
44. S. Chandra, S. Abbas, FRACTAL DIMENSIONS OF MIXED KATUGAMPOLA FRACTIONAL INTEGRAL ASSOCIATED WITH VECTOR VALUED FUNCTIONS, Chaos, Solitons and Fractals, 164, November 2022, 112648.
45. M. Kumar, S. Abbas, Analysis of Diffusive Size-Structured Population Model with Stochastic Perturbation, Differential and Integral Equations, Volume 35, Numbers 9-10 (2022), 641-658.
46. S Chandra, S Abbas, Fractal dimensions of mixed Katugampola fractional integral associated with vector valued functions, Chaos, Solitons & Fractals 164 (112648), 2022.
47. M. Kumar, S. Abbas, A. Tridane, A novel method for basic reproduction ratio of a diffusive size-structured population model with delay, Nonlinear Dynamics, 109, 3189–3198 (2022).
48. M. Kumar, S. Abbas, Analysis of steady state solutions to an age structured SEQIR model with optimal vaccination, Mathematical Methods in the Applied Sciences, 45 (17), 2022, 10718-10735.
49. S. Chandra, S. Abbas, Box dimension of mixed Katugampola fractional integral of two-dimensional continuous functions, Fractional Calculus and Applied Analysis, 25, 1022–1036 (2022).
50. M. Kumar, S. Abbas,  Age-Structured SIR Model for the Spread of Infectious Diseases Through Indirect Contacts. Mediterr. J. Math. 19 (2022), no. 1, Paper No. 14.
51. M. Kumar, S. Abbas, Global Dynamics of an Age-Structured Model for HIV Viral Dynamics with Latently Infected T Cells, Mathematics and Computers in Simulation, 198, August 2022, Pages 237-252.
52. S. Chandra, S. Abbas, Analysis of Fractals Dimesnion of Mixed Riemann-Liouville Integral, Numerical Algorithm,  91, 1021–1046 (2022). 
53. S. Abbas, S. Tyagi, P. Kumar, V. S. Erturk, S. Momani, Stability and bifurcation analysis of a fractional-order model of cell-to-cell spread of HIV-1 with a discrete time-delay, Mathematical Methods in the Applied Sciences,  45 (2022), no. 11, 7081–7095.
54. SR Grace, S Abbas, M Sajid, Oscillation of Nonlinear Even Order Differential Equations with Mixed Neutral Terms, Mathematical Methods in the Applied Sciences,  45 (2022), no. 2, 1063–1071.
55. A Kaur, M Sadhwani, S Abbas, Law Enforcement: The key to a Crime-free Society, The Journal of Mathematical Sociology, 46 (2022), no. 4, 342–359.
56. SR Grace, GN Chhatria, S. Abbas; Oscillation Properties of Solutions of Second Order Neutral Dynamic Equations of Non-canonical Type on Time Scales. Qual. Theory Dyn. Syst. 21 (2022), no. 1, Paper No. 17.
57. SR Grace, SS Negi, S Abbas, New oscillatory results for non-linear delay dynamic equations with super-linear neutral term, Applied Mathematics and Computation 412 (1), Article 126576, 2022.
58. A Deep, A Kumar, S Abbas, B Hazarika, An existence result for functional integral equations via Petryshyn's fixed point theorem, Journal of Integral Equations and Applications, 34, Issue 2, (Jun 2022), 165-181.
59. R Dhayal, M Malik, S Abbas, Existence, stability and controllability results of stochastic differential equations with non-instantaneous impulses, International Journal of Control, Volume 95, 2022 - Issue 7, 1719-1730.

60. S Abbas, S Dhama, M Pinto, D Sepúlveda, Pseudo compact almost automorphic solutions for a family of delayed population model of Nicholson type, Journal of Mathematical Analysis and Applications, Volume 495, Issue 1, 1 March 2021, 124722.
61. A Deep, D Dhiman, B Hazarika, S Abbas, Solvability for two dimensional functional integral equations via Petryshyn’s fixed point theorem, RACSAM, RACSAM (2021) 115:160. 
62. S. Chandra, S. Abbas, Analysis of Mixed Weyl-Marchaud Fractional Derivative and Box Dimensions, Fractals,  29, No. 06, 2150145 (2021).
63. S. Chandra, S. Abbas, The Calculus of Bivariate Fractal Interpolation Surfaces, Fractals, Vol. 29, No. 03, 2150066 (2021).
64. R Dhayal, M Malik, S Abbas, Solvability and optimal controls of non-instantaneous impulsive stochastic fractional differential equation of order q∈(1, 2), Stochastics 93 (5), 780-802, 2021.
65. S.R. Grace, G.N. Chhatria, S. Abbas, Second‐order oscillation of non‐canonical functional dynamical equations on time scales, Mathematical Methods in the Applied Sciences,  44 (2021), no. 11, 9292–9301.
66. S. Dhama, S. Abbas, Permanence, existence, and stability of almost automorphic solution of a non‐autonomous Leslie–Gower prey–predator model with control feedback terms on time scales, Mathematical Methods in the Applied Sciences, 44 (2021), no. 15, 11783–11796. 
67. S Abbas, M Niezabitowski, SR Grace, Global existence and stability of Nicholson Blowflies model with harvesting and random effect, Nonlinear Dynamics, 103, 2109–2123 (2021).
68. JP Tripathi, S Bugalia, K Burdak, S Abbas, Dynamical analysis and effects of law enforcement in a social interaction model, Physica A: Statistical Mechanics and its Applications, 567, 1 April 2021, 125725.
69. S. Dhama, S. Abbas, R. Sakthivel, Stability and Approximation of Almost Automorphic Solution on Time Scales for Stochastic Nicholson’s Blowflies Model, Journal of Integral Equations and Applications, 33, Issue 1, (Mar 2021) , pgs 31-51.
70. R Dhayal, M Malik, S Abbas, Solvability and optimal controls of non-instantaneous impulsive stochastic fractional differential equation of order q∈(1, 2), Stochastics, 93, 2021 - Issue 5, 780-802.
71. R Dhayal, M Malik, S Abbas, Approximate and trajectory controllability of fractional stochastic differential equation with non‐instantaneous impulses and Poisson jumps,  Asian Journal of Control, 23, 6 November 2021 Pages 2669-2680.
72. Dhayal Rajesh, Muslim Malik, Abbas, S.,  Anil Kumar and Sakthivel R, Approximation Theorems for Controllability Problem Governed by Fractional Differential Equation, Evolution Equations and Control Theory, 10, Issue 2: 411-429, 2021. 
73. S Alam, S Thakor, S Abbas, Inner Bounds for the Almost Entropic Region and Network Code Construction, IEEE Transactions on Communications, 69 (1), 19 - 30, 2021.

74. JP Tripathi, D Jana, NSNVKV Devi, V Tiwari, S Abbas, Intraspecific competition of predator for prey with variable rates in protected areas, Nonlinear Dynamics 102, 511–535, 2020.
75. S Singh Negi, Abbas, S.; Malik, M., A generalized delta derivative on time scale with applications, Mathematical Methods in the Applied Sciences, 43 (2020), no. 15, 9046–9079.
76. Guenane, Lina,  Hafayed, Mokhtar,  Meherrem, Shahlar, Abbas, S., On optimal solutions of general continuous‐singular stochastic control problem of McKean‐Vlasov type, Mathematical Methods in the Applied Sciences,  43 (2020), no. 10, 6498–6516. 
77. Dhama, S., Abbas, S., Debbouche, A., Doubly-weighted pseudo almost automorphic solutions for stochastic dynamic equations with Stepanov-like coefficients on time scales, Chaos, Solitons & Fractals, 137, 109899, 2020. 
78. Abbas, S., Dhama, S., Maximal and minimal solutions of a class of discontinuous generalized dynamical equations with delay on time scale, J. Fixed Point Theory Appl. 22 (2), 2020. 
79. Dhama, S., Abbas, S., Existence and Stability of Weighted Pseudo Almost Automorphic Solution of Dynamic Equation on Time Scales with Weighted Stepanov-Like (Sp) Pseudo Almost Automorphic Coefficients, Qualitative Theory of Dynamical Systems, 19, Article number: 46 (2020). 
80. Negi,  S.S., Abbas,  S., Malik, M., Grace, S.R.,  New oscillation criteria for p-Laplacian dynamic equations on time scales, Rocky Mountain Journal of Mathematics, 50, Issue 2, (Apr 2020) , page: 659-670.
81. Dhayal, R.; Mailk, M.; Abbas, S.; Debbouche, A.; Optimal Controls for Second Order Stochastic Differential Equations Driven by Mixed Fractional Brownian Motion with Impulses, Math. Methods Appl. Sci., 43, Issue7 15 May 2020, Pages 4107-4124. 
82. Dhama, S.; Abbas, S. Square-Mean Almost Automorphic Solutions of Stochastic Cellular Neural Network on Time Scales, Journal of Integral Equations and Applications, 32, Issue 2, (Jun 2020) , pgs 151-170. 

83. V Tiwari, JP Tripathi, Abbas S, JS Wang, GQ Sun, Z Jin; Qualitative analysis of a diffusive Crowley–Martin predator–prey model: the role of nonlinear predator harvesting, Nonlinear Dynamics, 98, pages1169–1189 (2019).
84. Negi, S.S.; Abbas, S.;  Malik, M., Oscillation criteria of nonlinear neutral dynamic equations with variable rates on time scale. Math. Methods Appl. Sci., 42 (2019), no. 12, 4146–4169.
85. Dhayal, Rajesh; Malik, Muslim; Abbas, Syed, Solvability and optimal controls of non-instantaneous impulsive stochastic neutral integro-differential equation driven by fractional Brownian motion. AIMS Math. 4 (2019), no. 3, 663–683.
86. Alam, Sultan; Abbas, Syed; Nieto, Juan J., Periodic solutions of a nonautonomous Leslie-Gower predator-prey model with non-linear type prey harvesting on time scales. Differ. Equ. Dyn. Syst. 27 (2019), no. 4, 357–367.
87. Tyagi, Swati; Abbas, Syed; Pinto, Manuel, Global exponential stability in Lagrange sense for periodic neural networks with various activation functions and time-varying delays. Appl. Math. (Warsaw) 46 (2019), no. 2, 229–252.
88.  Negi, Shekhar Singh; Abbas, Syed; Malik, Muslim, Oscillation for a nonlinear neutral dynamic equations on time-scales with variable exponents. Math. Methods Appl. Sci. 42 (2019), no. 12, 4146–4169.
89. Dhayal, Rajesh; Malik, Muslim; Abbas, Syed, Approximate and trajectory controllability of fractional neutral differential equation. Adv. Oper. Theory 4 (2019), no. 4, 802–820. 
90. Dhama, Soniya; Abbas, Syed, Existence and stability of square-mean almost automorphic solution for neutral stochastic evolution equations with Stepanov-like terms on time scales. Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Mat. RACSAM 113 (2019), no. 2, 1231–1250.
91. Malik, Muslim; Dhayal, Rajesh; Abbas, Syed, Exact controllability of a retarded fractional differential equation with non-instantaneous impulses. Dyn. Contin. Discrete Impuls. Syst. Ser. B Appl. Algorithms 26 (2019), no. 1, 53–69.
92. Malik, Muslim; Dhayal, Rajesh; Abbas, Syed; Kumar, Avadhesh Controllability of non-autonomous nonlinear differential system with non-instantaneous impulses. Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Mat. RACSAM 113 (2019), no. 1, 103–118. 

93. Tripathi, JP, Abbas, S., Sun, GQ, Jana, D., Wang, CH, Interaction between prey and mutually interfering predator in prey reserve habitat: pattern formation and the Turing-Hopf bifurcation, Journal of the Franklin Institute, 355,  (15), October 2018, Pages 7466-7489.  
94. Srivastava, H. M.; Abbas, S.; Tyagi, S.; Lassoued, D., Global exponential stability of fractional-order impulsive neural network with time-varying and distributed delay. Math. Methods Appl. Sci. 41 (2018), no. 5, 2095–2104.  
95. Alzabut, J., Swati, T., Abbas, S., Discrete fractional--order BAM neural networks with leakage delay: Existence and stability results, Asian Journal of Control, accepted 2018.
96. S Tyagi, SK Jain, S Abbas, S Meherrem, RK Ray, Time-delay-induced instabilities and Hopf bifurcation analysis in 2-neuron network model with reaction–diffusion term, Neurocomputing 313, 306-315, 2018.
97. Abbas, S., Qualitative analysis of dynamic equations on time scales, Electronic Journal of Differential Equations, Vol. 2018 (2018), No. 51, pp. 1-13. 
98. Tripathi, JP, Meghwani, S, Thakur, M, Abbas, S, A modified Leslie-Gower predator-prey interaction model and parameter identifiability, Communications in nonlinear science and numerical simulation, 54, 2018, 331-346. 
99. Negi, S. S.; Abbas, S.; Malik, M.; Oscillation criteria of singular initial-value problem for second order nonlinear dynamic equation on time scales. Nonauton. Dyn. Syst. 5 (2018), no. 1, 102–112.
100. Dhama, Soniya; Abbas, Syed, Square mean almost automorphic solution of stochastic evolution equations with impulses on time scales. Differ. Equ. Appl. 10 (2018), no. 4, 449–469.
101. Tripathi, Jai Prakash; Tyagi, Swati; Abbas, Syed, Dynamical analysis of a predator-prey interaction model with time delay and prey refuge. Nonauton. Dyn. Syst. 5 (2018), no. 1, 138–151.
102. JP Tripathi, SS Meghwani, S Tyagi, S Abbas, Global dynamics and parameter identifiability in a predator-prey interaction model, Nonautonomous Dynamical Systems 5 (1), 113-126, 2018.
103. EL Shishkina, S Abbas, Method of Riesz potentials applied to solution to nonhomogeneous singular wave equations, Mathematical notes of NEFU 25 (3), 68-91, 2018.
104. Tyagi, Swati; Abbas, Syed; Ray, Rajendra K. Stability and bifurcation analysis of cellular neural networks with discrete and distributed delays. Proc. Nat. Acad. Sci. India Sect. A 88 (2018), no. 2, 325–337.
105. S Dhama, S Abbas, Existence and stability of square-mean almost automorphic solution for neutral stochastic evolution equations with Stepanov-like terms on time scales, RACSAM, 2018.
106. S Abbas, A Coronel, M Pinto, S Tyagi, EXPONENTIAL APPROXIMATION OF SOLUTIONS OF BIDIRECTIONAL NEURAL NETWORKS MODEL WITH POSITIVE DELAY, Neural, Parallel, and Scientific Computations 26 (1), 1-29, 2018.
107. S Tyagi, S Abbas, M Kirane, Global asymptotic and exponential synchronization of ring neural network with reaction–diffusion term and unbounded delay, Neural Computing and Applications 30, 487–501, 2018.
108. Negi, Shekhar Singh; Abbas, Syed; Malik, Muslim; Xia, Yong-Hui New oscillation criteria of special type second-order non-linear dynamic equations on time scales. Math. Sci. (Springer) 12 (2018), no. 1, 25–39.

109. Abbas, S., Existence, uniqueness and continuation of solution of a sub diffusion functional differential equations with an integral condition, Fractional Differential Calculus 7(2), 2017, 265-281. 
110. Malik, Muslim; Abbas, Syed; Kumar, Avadhesh Existence and uniqueness of solutions of fractional order nonautonomous neutral differential equations with deviated arguments. J. Nonlinear Evol. Equ. Appl. 2017, Paper No. 6, 81–93.
111. Tyagi, S., Abbas, S., Pinto, M., Sepulveda, D., Approximation of Solutions of Fractional-Order Delayed Cellular Neural Network on [0, \inifty), Mediterranean Journal of Mathematics, February 2017, 14:23, 2017.
112. Kavitha, V.; Abbas, Syed; Murugesu, R. Existence of Stepanov-like weighted pseudo almost automorphic solutions of fractional integro-differential equations via measure theory. Nonlinear Stud. 24 (2017), no. 4, 825–850.
113. Kavitha, V.; Abbas, Syed; Murugesu, R. (μ1, μ2)-pseudo almost automorphic solutions of fractional order neutral integro-differrential equations. Nonlinear Stud. 24 (2017), no. 3, 669–685.
114. SS Negi, S Abbas, M Malik, Oscillation Criteria of Second-Order Non-Linear Dynamic Equations with Integro Forcing Term on Time Scales, Bulletin of the South Ural State University, Series "Mathematical Modelling, 2017.
115. Abbas, Syed; Tripathi, Jai Prakash; Neha, A. A. Dynamical analysis of a model of social behavior: criminal vs non-criminal population. Chaos Solitons Fractals 98 (2017), 121–129.
116. Tyagi, Swati; Abbas, Syed; Pinto, Manuel; Sepúlveda, Daniel Uniform Euler approximation of solutions of fractional-order delayed cellular neural network on bounded intervals. Tbilisi Math. J. 10 (2017), no. 1, 171–196.
117. Tripathi, Jai Prakash; Abbas, Syed; Thakur, Manoj Dynamical analysis of a density dependent two prey one predator model with help. Dyn. Contin. Discrete Impuls. Syst. Ser. B Appl. Algorithms 24 (2017), no. 1, 49–81.
118. Tyagi, Swati; Abbas, Syed, Stability and synchronization of delayed fractional-order projection neural network with piecewise constant argument of mixed type. Tbilisi Math. J. 10 (2017), no. 1, 57–74.

119. Tripathi, Jai Prakash; Abbas, Syed, Global dynamics of autonomous and nonautonomous SI epidemic models with nonlinear incidence rate and feedback controls. Nonlinear Dynam. 86 (2016), no. 1, 337–351. 
120. Kothari, A., Chauhan, VS., Misra, A., Abbas, S., Kumar, R., Effect of strain hardening on the electromagnetic radiation during plastic deformation of metals and alloys beyond yield point, Nonlinear Dynamics, 2016. 
121. A Kothari, VS Chauhan, A Kumar, R Kumar, R Vaish, S Abbas, Effect of Peierls stress and strain-hardening parameters on EMR emission in metals and alloys during progressive plastic deformation, International Journal of Materials Research 107 (6), 503-517, 2016.
122. Tripathi, J.P., Tyagi, S., Abbas, S., Global analysis of a delayed density dependent predator–prey model with Crowley–Martin functional response, Comm. Nonl. Sci. Num. Simu, 30 (1), 45-69, 2016. 
123. Hafayed, M., Abba, A., Abbas, S., On partial-information optimal singular control problem for mean-field stochastic differential equations driven by Teugels martingales measures, International Journal of Control, 89(2), 397-410, 2016.
124. Tyagi, Swati; Abbas, Syed; Hafayed, Mokhtar, Global Mittag-Leffler stability of complex valued fractional-order neural network with discrete and distributed delays. Rend. Circ. Mat. Palermo (2) 65 (2016), no. 3, 485–505.
125. Kavitha, V.; Abbas, Syed; Murugesu, R. Asymptotically almost automorphic solutions of fractional order neutral integro-differential equations. Bull. Malays. Math. Sci. Soc. 39 (2016), no. 3, 1075–1088.
126. B Kaviarasan, R Sakthivel, S Abbas, Robust consensus of nonlinear multi‐agent systems via reliable control with probabilistic time delay, Complexity 21 (S2), 138-150, 2016.
127. Abbas, Syed; Mahto, Lakshman; Favini, Angelo; Hafayed, Mokhtar Dynamical study of fractional model of allelopathic stimulatory phytoplankton species. Differ. Equ. Dyn. Syst. 24 (2016), no. 3, 267–280.

128. Abbas, S., Dynamical Analysis of a model of harmful algae in flowing habitats with variable rates, Nonlinear Analysis, RWA, 22, 16-33, 2015. 
129. Abbas, S., Kavitha, V., Murugesu, R., Stepanov-like weighted pseudo almost automorphic solutions to fractional order abstract integro-differential equations, Proceedings- Mathematical Sciences, 125(3), 323-351, 2015. 
130. Tripathi, J.P., Abbas, S., Thakur, M., A density dependent delayed predator-prey model with Beddington-DeAngelis type Function Response incorporating a prey refuge, Comm. Nonl. Sci. Num. Simu., 22 (1), 427-450, 2015. 
131. Tripathi, J.P., Abbas, S., Thakur, M., Dynamical analysis of a prey–predator model with Beddington–DeAngelis type function response incorporating a prey refuge, Nonlinear Dynamics, Volume 80, Issue 1-2, pp 177-196 , 2015.
132. Hafayed, M., Abbas, S., Abba, A., On Mean-Field Partial Information Maximum Principle of Optimal Control for Stochastic Systems with Lévy Processes, J. Optimization Theory and Appl., 167(3), 1051-1059, 2015. 
133. Banerjee, M., Abbas, S., Existence and non-existence of spatial patterns in a ratio-dependent predator–prey model, Ecological Complexity, Volume 21, 199–214, 2015. 
134. S Abbas, Y Xia, Almost automorphic solutions of impulsive cellular neural networks with piecewise constant argument, Neural Processing Letters 42 (3), 691-702, 2015.
135. Abbas, S.; Bahuguna, D.; Bashier, E. B. M.; Patidar, K. C. Pseudo almost periodic mild solutions of quasilinear functional differential equations with application to mathematical biology. Neural Parallel Sci. Comput. 23 (2015), no. 2-4, 319–334.
136. Mahto, L., Abbas, S., PC-almost automorphic solution of impulsive fractional differential equations, accepted, Mediterranean Journal of Mathematics, July 2015, Volume 12, Issue 3, 771-790. 

137. Hafayed, M., Abbas, S., On Near-Optimal Mean-Field Stochastic Singular Controls: Necessary and Sufficient Conditions for Near-Optimality, J. Optimization Theory and Appl., 160 (3), (2014) 778-808.
138. S Abbas, L Mahto, M Hafayed, AM Alimi, Asymptotic almost automorphic solutions of impulsive neural network with almost automorphic coefficients, Neurocomputing 142, 326-334, 2014.
139. S Abbas, VS Erturk, S Momani, Dynamical analysis of the Irving–Mullineux oscillator equation of fractional order, Signal Processing 102, 171-176, 2014.
140. Hafayed, M., Veverka, P., Abbas, S., On Near-optimal Necessary and Sufficient Conditions for Forward-backward Stochastic Systems with Jumps, with Applications to Finance, Applications of Mathematics, 59 (4), 2014, 407-440. 
141. M Hafayed, A Abba, S Abbas, On mean-field stochastic maximum principle for near-optimal controls for Poisson jump diffusion with applications, International Journal of Dynamics and Control 2 (3), 262-284, 2014.
142. PS Mandal, S Abbas, M Banerjee, A comparative study of deterministic and stochastic dynamics for a non-autonomous allelopathic phytoplankton model, Applied Mathematics and Computation 238, 300-318, 2014.
143. S Abbas, YK Chang, M Hafayed, Stepanov type weighted pseudo almost automorphic sequences and their applications to difference equations, Nonlinear Studies 21 (1), 99-111, 2014.
144. S Abbas, Weighted pseudo almost automorphic solutions of fractional functional differential equations, Cubo (Temuco) 16 (1), 21-36, 2014.
145. Tripathi, J.P., Abbas, S., Thakur, M., Local and global stability analysis of two prey one predator model with help, Comm. Nonl. Sci. Numer. Sim.,  19 (9), 2014, 3284-3297. 

146. Hafayed, M., Abbas, S., Stochastic near-optimal singular controls for jump diffusions: necessary and sufficient conditions. J. Dyn. Control Syst. 19 (2013), no. 4, 503–517.
147. L Mahto, S Abbas, A Favini,  Analysis of Caputo impulsive fractional order differential equations with applications, International Journal of Differential Equations 2013.
148. S Abbas, XIA Yonghui, Existence and attractivity of k-almost automorphic sequence solution of a model of cellular neural networks with delay, Acta Mathematica Scientia 33 (1), 290-302, 2013.
149. M Lakshman, S. Abbas, Approximate controllability and optimal control of impulsive fractional functional differential equations, Journal of Abstract Differential Equations and Applications 4 (2), 44-59, 2013.
150. Hafayed, M., Abbas, S., Veverka, P., On necessary and sufficient conditions for near-optimal singular stochastic controls, Optimization Letters, 2013, 7(5), 949-966. 

151. Abbas, S., Existence and Attractivity of k-Pseudo Almost Automorphic Sequence Solution of a Model of Bidirectional Neural Networks. Acta Applicandae Mathematicae, 119(1), 2012, 57-74. 
152. S. Abbas, A note on Weyl pseudo almost automorphic functions and their properties, Mathematical Sciences 6 (1), 29, 2012.
153. YH Xia, X Gu, PJY Wong, S Abbas, Application of Mawhin's Coincidence Degree and Matrix Spectral Theory to a Delayed System, Abstract and Applied Analysis 2012.
154. M Hafayed, P Veverka, S Abbas, On Maximum Principle of Near-optimality for Diffusions with Jumps, with Application to Consumption-Investment Problem, Differential Equations and Dynamical Systems 20 (2), 111-125, 2012.
155. M Hafayed, S Abbas, Generalized Gradient in Weak Maximum Principle with Non-differentiable Drift, International Journal of Evolution Equations 6 (1), 17-29, 2012.
156. S Abbas, Mokhtar Hafayed, Filippov approach in necessary conditions of optimality for singular control problem, International Journal of Pure and Applied Mathematics 77 (5), 667-680, 2012.
157. Abbas, S., Sen, M., Banerjee, M., Almost periodic solutions of non-autonomous model of phytoplankton allelopathy, Nonlinear Dynamics, 67(1), 2012, 203-214. 

158. Abbas, S., Pseudo almost automorphic solutions of some nonlinear integro-differential equations. Computers & Mathematics with Applications, 62(05), 2011, 2259-2272.
159. Abbas, S., Banerjee, M., Momani, S., Dynamical analysis of a fractional order modified logistic model, Computers and Mathematics with Applications, Volume 62, Issue 3 (2011), 1098-1104. 
160. I Mishra, D Bahuguna, S Abbas, Existence of Almost Automorphic Solutions of Neutral Functional Differential Equation, Nonlinear Dynamics and Systems Theory 11 (2), 165-172, 2011.
161. Abbas, S., Existence of solutions to fractional order ordinary and delay differential equations and applications, Electronic Journal of Differential Equations, Vol. 2011(2011), 9, pp. 1-11. 

162. Abbas, S., Weighted pseudo almost automorphic sequences and their applications, Electronic Journal of Differential Equations, Vol. 2010(2010), No. 121, pp. 1-14.

Before joining IIT Mandi:

163. Abbas, S., “Pseudo almost automorphic solutions of fractional order neutral differential equation”, Semigroup Forum, Volume 81, Number 3, 393-404, 2010.  
164. Abbas, S., Pseudo almost periodic solution of stochastic functional differential equations, International Journal of Evolution Equations 5 (4), 1-13, 2010.
165. Abbas, S., Banerjee, M., Stochastically perturbed allelopathic phytoplankton model, Electronic Journal of Differential Equations, Vol. 2010(2010), No. 98, pp. 1-15. 
166. Abbas, S., Banerjee, M., Hungerbuhler, N., Existence, uniqueness and stability analysis of allelopathic stimulatory phytoplankton models, J. Math. Anal. Appl., Volume 367, Issue 1, 1, July 2010, 249-259.  

167. Abbas, S. Pseudo almost periodic sequence solutions of discrete time cellular neural networks. Nonlinear Anal. Model. Control 14 (2009), no. 3, 283–301. 
168. Abbas, S., Bahuguna, D. Banerjee, M., Effect of stochastic perturbation on two species competitive model, Nonlinear Analysis, HS, 3, 3 (2009), 195-206.
169. Abbas, S., Bahuguna, D., Existence of solutions to quasilinear functional differential equations, Electronic Journal of Differential Equation, Vol. 2009 (2009), No. 164, 1-8.
170. D Bahuguna, S. Abbas, RK Shukla, Laplace transform method for one-dimensional heat and wave equations with nonlocal conditions, International Journal of Applied Mathematics & Statistics 16 (M10), 96-100, 2009.

171. Abbas, S., Bahuguna, D., Almost periodic solutions of neutral functional differential equations, Computers and Mathematics with Application, 55-11 (2008), 2593-2601. 
172. Abbas, S.; Bahuguna, D. Almost periodic solutions of a functional differential equation by monotone iterative method. Differ. Equ. Dyn. Syst. 16 (2008), no. 1-2, 47–62. 
173. D Bahuguna, S. Abbas, Pseudo almost periodic mild solutions of retarded functional differential equations, Global Journal of Pure and Applied Mathematics 3 (1), 27-37, 2007.
174. Abbas, S.; Bahuguna, D. Almost periodic solutions of nonlinear functional differential equations. Differ. Equ. Dyn. Syst. 16 (2008), no. 3, 289–308.
175. Bahuguna, D., Abbas, S., Dabbas, J., Partial functional differential equation with an integral Condition and applications to population dynamics, Nonlinear Analysis, TMA, 69 (2008), 2623-2635. 

General Articles:

1. Karishma S Kaushik*, Syed Ghulam Musharraf*, Monir Uddin Ahmed, Nova Ahmed, Muhammad Farooq, Almas Taj Awan, Syed Abbas, Suraj Bhattarai, Anindita Bhadra, Mahesh Kumar, Uttam Shreshtha, Meghnath Dhimal, Can digital tools and social media serve as the olive branch for science diplomacy in South Asia? Science Policy Forum, Jan 20, 2022. https://thesciencepolicyforum.org/articles/perspectives/can-digital-tools-and-social-media-serve-as-the-olive-branch-for-science-diplomacy-in-south-asia/
2. *Monir Uddin Ahmed, Syed Ishtiaque Ahmed, Nova Ahmed, Almas T. Awan, Anindita Bhadra, Suraj Bhattarai, Mahesh Kumar, Meghnath Dhimal, Uttam Babu Shrestha, Syed Abbas, Sandeep Kaur-Ghumaan, Muhammad Wahajuddin, An Overview of Science Diplomacy in South Asia, Science & Diplomacy, Publisher: AAAS Center for Science Diplomacy, 2021.
3. Abbas, S., Proving the Extended Binomial Theorem Using Ordinary Differential Equations, Mathematics Magazine 93 (1), 2020, 33-35. (Mathematical Association of America)
4. Abbas, S., Sharing Cakes (puzzle and solution), Plus Magazine, 2020. (Cambridge University)
5. Abbas, S., Time Scale Calculus: Unification of discrete and continuous calculus, Mathematics Newsletter (Published by Ramanujan Math Society), 29 (2018), no. 1, 19–23.
6. Abbas, S., Golden Ratio: A measure of Physical Beauty, Resonance, January 2017, Vol-22, 1-10, 2017. (Published by Indian Academy of Sciences)
7. Abbas, S., What if n=1/3, 1/2 or 2/3 or any fraction in d^n(y)/dx^n?, Essent, Vol-1, Issue-2, 34-36, 2016. (Published by IIT Mandi)
8. Abbas, S., Sheep distribution problem through Egyptian fractions, Resonance, September 2014, Volume 19, Issue 9, pp 840-845, 2014. (Published by Indian Academy of Sciences)

Review article:

1. Abbas, Syed; Negi, Shekhar Singh; Grace, Said R.; Agarwal, Ravi P.; Wang, Chao Survey on qualitative theory of dynamic equations on time scale. Mem. Differ. Equ. Math. Phys. 84 (2021), 1–67.

Conference Proceedings:

1.  Subhash Chandra, Syed Abbas; On fractal dimension of the graph of non stationary fractal interpolation function; 2023, Contemporary Mathematics (CONM) series of the American Mathematical Society (AMS)
2. Kumar, Manoj; Abbas, Syed Optimal birth control of population dynamics with time-varying diffusivity coefficient. Advances in nonlinear dynamics. Vol. 3, 163–174, NODYCON Conf. Proc. Ser., Springer, Cham, [2022]
3. Jai Prakash Tripathi, Vandana Tiwari, Syed Abbas, A Non-autonomous Ecological Model with Some Applications, Progress in Advanced Computing and Intelligent Engineering, Springer, 2019,  pp 557-563.
4. Soniya Dhama, Syed Abbas, Asymptotically Almost Automorphic Solution for Neutral Functional Integro Evolution Equations on Time Scales, ICMMAAC 2018: Mathematical Modelling, Applied Analysis and Computation, Springer, 2019, pp 113-127.
5. Sultan Alam; Satyajit Thakor; Syed Abbas; An Analysis of a Randomized Local Search Algorithm for the Entropy Space; 2019 4th International Conference on Information Systems and Computer Networks (ISCON), Year: 2019 | Conference Paper | Publisher: IEEE
6. Sultan Alam;Satyajit Thakor; Syed Abbas; On Enumerating Distributions for Associated Vectors in the Entropy Space; 2018 International Symposium on Information Theory and Its Applications (ISITA), Year: 2018 | Conference Paper | Publisher: IEEE
7. Satyajit Thakor; Syed Abbas; Upper bounds on the capacity of 2-layer N-relay symmetric Gaussian network, 2016 International Symposium on Information Theory and Its Applications (ISITA), Year: 2016 | Conference Paper | Publisher: IEEE
8. Swati Tyagi, Syed Abbas, Rajendra K.  Ray, Stability Analysis of an Integro Differential Equation Model of Ring Neural Network with Delay, Mathematical Analysis and its Applications, Springer, 2015, pp 37-49
9. Jai Prakash Tripathi, Syed Abbas, Almost Periodicity of a Modified Leslie–Gower Predator–Prey System with Crowley–Martin Functional Response, Mathematical Analysis and its Applications, Springer, 2015, pp 309-317
10. Syed Abbas, Almost Automorphic Sequences and Their Application to a Model of a Cellular Neural Network, Theory and Applications of Difference Equations and Discrete Dynamical Systems, Springer, 2014, pp 101-111
11. JP Tripathi, Syed Abbas, M Thakur, Stability analysis of two prey one predator model, AIP Conf. Proc. 1479 (1), 2012, 905-909.
12. Syed Abbas, L Mahto, Existence of almost periodic solution of a model of phytoplankton allelopathy with delay, AIP Conf. Proc. 1479 (1), 2012, 900-904.
13. L Mahto, Syed Abbas, Existence and uniqueness of solution of Caputo fractional differential equations, AIP Conf. Proc. 1479, 2012, 896-899.

Book Chapter:

1. Syed Abbas, Lakshman Mahto, Piecewise Continuous Stepanov-Like Almost Automorphic Functions with Applications to Impulsive Systems, Current Trends in Mathematical Analysis and Its Interdisciplinary Applications, Springer (Edited), 2019, pp 119-140.
2. Mokhtar Hafayed, Syed Abbas, Generalized Gradient in Weak Maximum Principle with Non-differentiable Drift, Evolution Equations: New Research, Series: Mathematics Research Developments, Edited by G. M. N'Guerekata, 2014.
3. Syed Abbas, Pseudo Almost Periodic Solution of Stochastic Functional Differential Equations, Evolution Equations Research Compendium ,Vol. 2, Pages 369-382,Edited by G. M. N'Guerekata, 2012.
4. Syed Abbas, Weighted Pseudo Almost Automorphic Solutions of Neutral Functional Differential Equations, Evolution Equations edited by Arthur L. Claes, Mathematics Research Developments series, Nova Science Publishers, USA, 2011, ISBN: 978-1-61209-652-0.