Research and publications

• Mathematical control theory

• Descriptor systems (Differential algebraic equations)

• Structural analysis of linear systems

• Observer design

• Data-driven control

• J. Jaiswal, T. Berger, N. K. Tomar, “Partial causal detectability of linear descriptor systems and existence of functional ODE estimators,” SIAM Journal on Control and Optimization, SIAM, vol. 63(5), pp. 3728-3753, 2025.  

DOI: 10.1137/24M1659601. Link 

• J. Jaiswal, T. Berger, N. K. Tomar, “Partial detectability and generalized functional observer design for linear descriptor systems,” Franklin Open, Elsevier, vol. 10, p.100238, 2025.

DOI: 10.1016/j.fraope.2025.100238. Link 

• P. K. Tunga, J. Jaiswal, and N.K. Tomar, “Robust H_\infty filter based functional observer design for descriptor systems: An application to cardiovascular system monitoring,” Computational and Mathematical Biophysics, De Gruyter, vol. 12(1), p. 20240013,  2024. 

DOI: 10.1515/cmb-2024-0013. Link

• J. Jaiswal, T. Berger, N. K. Tomar, “Existence conditions for functional ODE observer design of descriptor systems revisited,” Journal of the Franklin Institute, Elsevier, vol. 361(8), p. 106848, 2024. 

DOI: 10.1016/j.jfranklin.2024.106848. Link 

• P. K. Tunga, J. Jaiswal, N. K. Tomar, “Functional observers for descriptor systems with unknown inputs,” IEEE Access, IEEE, vol. 11, pp. 19680-19689, 2023. 

DOI: 10.1109/ACCESS.2023.3249099. Link 

• J. Jaiswal, T. Berger, N. K. Tomar, “Partial impulse observability of linear descriptor systems,” Systems & Control Letters, Elsevier, vol. 168, p. 105352, 2022. 

DOI: 10.1016/j.sysconle.2022.105352. Link 

• J. Jaiswal, M. K. Gupta, N. K. Tomar, “Necessary and sufficient conditions for ODE observer design of descriptor systems,” Systems & Control Letters, Elsevier, vol. 151, p. 104916, 2021. 

DOI: 10.1016/j.sysconle.2021.104916. Link 

• J. Jaiswal, N. K. Tomar, “Existence conditions for ODE functional observer design of descriptor systems,” IEEE Control Systems Letters, vol. 6, pp. 355–360, 2021. 

DOI: 10.1109/LCSYS.2021.3076024. Link 

     (The Conference on Decision and Control (CDC) Program Committee also selected this paper's contents for presentation at CDC  2021. The conference was held in Austin, Texas, USA from December 13-15, 2021.)

• J. A. Lone, J. Jaiswal, S. Bhaumik, N. K. Tomar, “On Functional Estimator Design for Linear Discrete-Time Descriptor Systems,” 2025 Australian & New Zealand Control Conference (ANZCC), Gold Coast City, Australia, 2025, pp. 41-46. 

DOI: 10.1109/ANZCC65042.2025.10873332. Link 

• J. Jaiswal, P. K. Tunga, N. K. Tomar, “Functional ODE Observers for A Class of Descriptor Systems,” 2022 Eighth Indian Control Conference (ICC), Chennai, India, 2022, pp. 97-102. 

DOI: 10.1109/ICC56513.2022.10093626. Link 

• J. Jaiswal, M. K. Gupta, N. K. Tomar, “On functional observers for descriptor systems,” in 2021 American Control Conference (ACC). IEEE, 2021, pp. 4093–4098. 

DOI: 10.23919/ACC50511.2021.9482902. Link 

• M. K. Gupta, N. K. Tomar, D. Sharma, J. Jaiswal, “PD Observer Design for Descriptor Systems with Unknown Inputs: Application to Infinite Bus System,” In 2020 5th IEEE International Conference on Recent Advances and Innovations in Engineering (ICRAIE), Jaipur, India, December 1-3, 2020, pp. 1-5, IEEE. 

DOI: 10.1109/ICRAIE51050.2020.9358352. Link 

• J. Jaiswal, R. Suresh, R. Rengaswamy, “Time-frequency equivalence using chirp signals for frequency response analysis.”

• J. Jaiswal, R. Rengaswamy, “Data-driven observability and detectability of linear discrete system.” (Ready to communicate)

• J. Jaiswal, V. K. Mishra, R. Rengaswamy, N. Bajcinca, “Distributed state estimation of linear descriptor systems.”