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Dr. Biswambhar Rakshit

Associate Professor, Department of Mathematics, School of Physical Sciences, Coimbatore

Qualification: BSc, MSc, Ph.D
b_rakshit@cb.amrita.edu
Scopus ID
Research Interest: Non Linear Dynamical System

Bio

Dr. Biswambhar Rakshit currently serves as Assistant Professor (Sl.Gd.) at the Department of Mathematics, Amrita School of Physical Sciences, Coimbatore Campus.

Dr. Biswambhar Rakshit received his Ph.D in Mathematics from the Indian Institute of Technology Kharagpur (IIT Kgp) under the supervision of Prof. Soumitro Banerjee. Before joining Amrita University Dr. Rakshit has worked as a postdoctoral fellow at the University of Tokyo, Japan, and as a Lecturer at National institute of Technology, Hamirpur, India.

His research interests include Complex Systems, Nonlinear Dynamics and Stochastic Systems. Currently he is working on Emergent Behaviour in Network of Coupled Oscillators having its applicability in modeling various self-organized complex ecological and biological systems.

Publications

Journal Article

Year : 2026

Tragedy of the commons through regime shifts in eco-evolutionary dynamics of renewable resources with Allee effects

Cite this Research Publication : Arthana Mattada, Biswambhar Rakshit, Dibakar Ghosh, Tragedy of the commons through regime shifts in eco-evolutionary dynamics of renewable resources with Allee effects, Chaos: An Interdisciplinary Journal of Nonlinear Science, AIP Publishing, 2026, https://doi.org/10.1063/5.0339789

Publisher : AIP Publishing

Year : 2026

Structural Covariance Networks From T1-MRI for Epilepsy Diagnosis: A Graph-Theoretical and Machine Learning Approach

Cite this Research Publication : K. C. Gurukarthi, K. C. Gurukumar, K. R. Rashmika, Biswambhar Rakshit, Sandipan Pati, Karthi Balasubramanian, Structural Covariance Networks From T1-MRI for Epilepsy Diagnosis: A Graph-Theoretical and Machine Learning Approach, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), 2026, https://doi.org/10.1109/access.2026.3713013

Publisher : Institute of Electrical and Electronics Engineers (IEEE)

Year : 2026

Emergent synchrony, metastability, and chaos in a mixed neuronal populations with higher-order interactions

Cite this Research Publication : Soorya Pootharpoyil, Amit Sharma, Biswambhar Rakshit, Kazuyuki Aihara, Emergent synchrony, metastability, and chaos in a mixed neuronal populations with higher-order interactions, Chaos: An Interdisciplinary Journal of Nonlinear Science, AIP Publishing, 2026, https://doi.org/10.1063/5.0346436

Publisher : AIP Publishing

Year : 2026

Graph hybrid neural network integration for enhanced diabetic retinopathy detection in retinal image

Cite this Research Publication : S. Afzal, Biswambhar Rakshit, K. Somasundaram, Graph hybrid neural network integration for enhanced diabetic retinopathy detection in retinal image, Discover Artificial Intelligence, Springer Science and Business Media LLC, 2026, https://doi.org/10.1007/s44163-026-02375-w

Publisher : Springer Science and Business Media LLC

Year : 2025

Aging in a weighted ensemble of excitable and self-oscillatory neurons: The role of pairwise and higher-order interactions

Cite this Research Publication : Amit Sharma, Biswambhar Rakshit, Kazuyuki Aihara, Aging in a weighted ensemble of excitable and self-oscillatory neurons: The role of pairwise and higher-order interactions, Chaos: An Interdisciplinary Journal of Nonlinear Science, AIP Publishing, 2025, https://doi.org/10.1063/5.0247769

Publisher : AIP Publishing

Year : 2025

Robust oscillatory dynamics in a mixed population of excitable and self-oscillatory Izhikevich neurons: Influence of second-order linear and nonlinear interactions

Cite this Research Publication : Soorya PP, Biswambhar Rakshit, Kazuyuki Aihara, Robust oscillatory dynamics in a mixed population of excitable and self-oscillatory Izhikevich neurons: Influence of second-order linear and nonlinear interactions, Chaos: An Interdisciplinary Journal of Nonlinear Science, AIP Publishing, 2025, https://doi.org/10.1063/5.0274541

Publisher : AIP Publishing

Year : 2025

Chimera-like states in networks of oscillators with mixed repulsive coupling

Cite this Research Publication : Dharmendra Sharma, Umesh Kumar Verma, Biswambhar Rakshit, Amit Sharma, Chimera-like states in networks of oscillators with mixed repulsive coupling, Chaos, Solitons & Fractals, Elsevier BV, 2025, https://doi.org/10.1016/j.chaos.2025.117298

Publisher : Elsevier BV

Year : 2024

Regime shift in Rosenzweig–Macarthur predator–prey model in presence of strong Allee effect in prey

Cite this Research Publication : Biswambhar Rakshit, Thirumalai Vaasan Raghunathan, Regime shift in Rosenzweig–Macarthur predator–prey model in presence of strong Allee effect in prey, Nonlinear Dynamics, Springer Science and Business Media LLC, 2024, https://doi.org/10.1007/s11071-024-09441-x

Publisher : Springer Science and Business Media LLC

Year : 2024

Dynamical robustness of network of oscillators

Cite this Research Publication : Soumen Majhi, Biswambhar Rakshit, Amit Sharma, Jürgen Kurths, Dibakar Ghosh, Dynamical robustness of network of oscillators, Physics Reports, Elsevier BV, 2024, https://doi.org/10.1016/j.physrep.2024.06.003

Publisher : Elsevier BV

Year : 2023

Predicting aging transition using Echo state network

Cite this Research Publication : Biswambhar Rakshit, Aryalakshmi S, Arjun J. Kartha, Chittaranjan Hens, Predicting aging transition using Echo state network, Chaos: An Interdisciplinary Journal of Nonlinear Science, AIP Publishing, 2023, https://doi.org/10.1063/5.0162926

Publisher : AIP Publishing

Year : 2023

Time delays shape the eco-evolutionary dynamics of cooperation

Cite this Research Publication : Sourav Roy, Sayantan Nag Chowdhury, Srilena Kundu, Gourab Kumar Sar, Jeet Banerjee, Biswambhar Rakshit, Prakash Chandra Mali, Matjaž Perc, Dibakar Ghosh, Time delays shape the eco-evolutionary dynamics of cooperation, Scientific Reports, Springer Science and Business Media LLC, 2023, https://doi.org/10.1038/s41598-023-41519-1

Publisher : Springer Science and Business Media LLC

Year : 2022

Dynamical robustness in presence of attractive-repulsive interactions

Cite this Research Publication : Amit Sharma, Biswambhar Rakshit, Dynamical robustness in presence of attractive-repulsive interactions, Chaos, Solitons & Fractals, Elsevier BV, 2022, https://doi.org/10.1016/j.chaos.2022.111823

Publisher : Elsevier BV

Year : 2020

Abnormal route to aging transition in a network of coupled oscillators

Cite this Research Publication : Dr. Biswambhar Rakshit, Niveditha Rajendrakumar, and B. Balaram, “Abnormal route to aging transition in a network of coupled oscillators”, Chaos: An Interdisciplinary Journal of Nonlinear Science, vol. 30, no. 10, 2020.

Publisher : Chaos: An Interdisciplinary Journal of Nonlinear Science

Year : 2020

Enhancement of dynamical robustness in a mean-field coupled network through self-feedback delay

Cite this Research Publication : Amit Sharma and Dr. Biswambhar Rakshit, “Enhancement of dynamical robustness in a mean-field coupled network through self-feedback delay”, arXiv preprint arXiv:2007.13405, 2020.

Publisher : arXiv preprint arXiv

Year : 2018

Augmentation of dynamical persistence in networks through asymmetric interaction

Cite this Research Publication : Srilena Kundu, Soumen Majhi, Partha Karmakar, Dibakar Ghosh, and Dr. Biswambhar Rakshit, “Augmentation of dynamical persistence in networks through asymmetric interaction”, EPL (Europhysics Letters), vol. 123, p. 30001, 2018.

Publisher : EPL (Europhysics Letters)

Year : 2017

Survivability of a metapopulation under local extinctions

Cite this Research Publication : Srilena Kundu, Soumen Majhi, Sourav Kumar Sasmal, Dibakar Ghosh, and Dr. Biswambhar Rakshit, “Survivability of a metapopulation under local extinctions”, Physical Review E, vol. 96, 2017.

Publisher : Physical Review E

Year : 2012

IFAC PROCEEDINGS VOLUMES (IFAC-PAPERSONLINE)

Cite this Research Publication : R. V. Gomez-Acata, Lopez-Perez, P. A., Aguilar-Lopez, R., Maya-Yescas, R., Q Zeng, H. X., Dr. Biswambhar Rakshit, S. Banerjee, Aihara, K., Ramírez, J. P., Aguirre, A. A., Fey, R. H. B., Nijmeijer, H., Torres-Treviño, L., Rodriguez, A., Pisarchik, A. N., Martínez-Zérega, B. E., Castro, J., Alvarez, J., Huerta-Cuellar, G., Jaimes-Reátegui, R., Sevilla-Escoboza, R., García-López, J. H., López-Mancilla, D., Castañeda-Hernández, C. E., and Murguia, C., “IFAC PROCEEDINGS VOLUMES (IFAC-PAPERSONLINE)”, Chaos, vol. 203, p. 208, 2012.

Publisher : Chaos

Year : 2012

Circle Like Strange Attractor in a Piecewise Smooth Map

Cite this Research Publication : Dr. Biswambhar Rakshit, Soumitro Banerjee, and Kazuyuki Aihara, “Circle Like Strange Attractor in a Piecewise Smooth Map”, IFAC Proceedings Volumes, vol. 45, pp. 81 - 86, 2012.

Publisher : IFAC Proceedings Volumes

Year : 2010

Bifurcation phenomena in two-dimensional piecewise smooth discontinuous maps

Cite this Research Publication : Dr. Biswambhar Rakshit, Manjul Apratim, and Soumitro Banerjee, “Bifurcation phenomena in two-dimensional piecewise smooth discontinuous maps”, Chaos: An Interdisciplinary Journal of Nonlinear Science , 2010.

Publisher : Chaos: An Interdisciplinary Journal of Nonlinear Science

Year : 2009

Existence of chaos in a piecewise smooth two-dimensional contractive map

Cite this Research Publication : Dr. Biswambhar Rakshit and Soumitro Banerjee, “Existence of chaos in a piecewise smooth two-dimensional contractive map”, Physics Letters A, vol. 373, pp. 2922 - 2926, 2009.

Publisher : Physics Letters A

Year : 2007

Parameter estimation of a delay dynamical system using synchronization in presence of noise

Cite this Research Publication : Dr. Biswambhar Rakshit, A. Roy Chowdhury, and Papri Saha, “Parameter estimation of a delay dynamical system using synchronization in presence of noise”, Chaos, Solitons & Fractals, vol. 32, pp. 1278 - 1284, 2007.

Publisher : Chaos, Solitons Fractals

Year : 2005

Multiple Attractor in Newton -Leipnik System, Peak to Peak dynamics and Chaos Control

Cite this Research Publication : Dr. Biswambhar Rakshit, Papri Saha, and Asesh Roy Chowdhury, “Multiple Attractor in Newton -Leipnik System, Peak to Peak dynamics and Chaos Control”, arXiv preprint nlin/0501014, 2005.

Publisher : arXiv preprint nlin

Year : 2005

Chaos and Control in Nonlinear Bloch System

Cite this Research Publication : Dr. Biswambhar Rakshit, Papri Saha, and Asesh Roy Chowdhury, “Chaos and Control in Nonlinear Bloch System”, arXiv preprint nlin/0501004, 2005.

Publisher : arXiv preprint nlin

Year : 2005

On the analysis of spatial chaos and Hopf bifurcation in an optical open flow

Cite this Research Publication : Papri Saha, Dr. Biswambhar Rakshit, and A. Roy Chowdhury, “On the analysis of spatial chaos and Hopf bifurcation in an optical open flow”, Chaos, Solitons & Fractals, vol. 25, pp. 367 - 378, 2005.

Publisher : Chaos, Solitons Fractals

Education
  • Ph.D. in Mathematics – Indian Institute of Technology (IIT) Kharagpur
  • M.Sc. in Mathematics – Jadavpur University
  • B.Sc. in Mathematics – The University of Burdwan
Award and Fellowship
  • Postdoctoral Fellowship, Japan Science & Technology (JST), University of Tokyo (2011–2014).
  • Qualified in Graduate Aptitude Test in Engineering (GATE), conducted by IITs’ &IISc, Bangalore on behalf of MHRD, Govt. of India.
  • Junior Research Fellowship and Eligibility for Lectureship through National Eligibility
    Test (CSIR-NET) by Council of Scientific and Industrial Research, India.
Courses Taught
  1. Reinforcement Learning
  2. Linear Algebra
  3. Optimization Techniques
  4. Convex Optimization
  5. Probability and Statistics
  6. Partial Differential Equation
  7. Differential Equation
  8. Nonlinear Dynamics
Research Interest

Expertise and Fields of Present Research Interest

The research combines nonlinear dynamics, computational modeling, and machine learning to understand the behavior of complex systems. These approaches are applied to problems in computational neuroscience and eco-evolutionary dynamics, as well as to the detection of early-warning signals of extreme events and critical transitions.

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