Dr. Subarna Roy

About

I am a researcher in Applied Mathematics with interests in mathematical biology, nonlinear dynamical systems, ecological modeling, and fractional calculus. My research primarily focuses on predator–prey, host–parasite, and plankton ecosystem models incorporating biologically realistic factors such as fear effects, memory effects, climate change, toxicants, refuge mechanisms, and functional responses including Holling type II and Beddington–DeAngelis forms.

I have also worked on delay-diffusion partial differential equation models involving interacting healthy and infected host populations together with predator or parasite dynamics. In addition, my research explores the impact of environmental fluctuations and stochastic perturbations on ecosystem stability and biodiversity conservation.

Currently, I am serving as an assistant professor in the department of BSH, IIIT Bhagalpur, and actively preparing research articles for publication in reputed international journals. My future research directions include stochastic ecological systems, advanced fractional derivatives such as Atangana–Baleanu and Caputo–Fabrizio operators, and interdisciplinary applications of applied mathematics in environmental and biological sciences.

Employment

• IIIT Bhagalpur Assistant Professor (Guest Faculty)
  2026 - 2026
• Indian Institute of Information Technology Bhagalpur Senior Research Fellow
  2021 - 2026

Education

Education history is unavailable.

Projects & Funding

Projects & funding information is unavailable.

Publications (25)

• Bifurcation analysis and fear-induced reactions in non-refuged prey with cooperative hunting among predators: Deterministic and stochastic dynamics
  Mathematical Biosciences 2026 DOI: 10.1016/j.mbs.2026.109641
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• Deterministic vs. stochastic dynamics of a predator–prey system with disease in prey: Impact of fear and supplementary foods
  International Journal of Biomathematics 2026 DOI: 10.1142/S1793524524500475
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• The impact of human shields in autonomous and non-autonomous prey–predator models with modified Cosner functional response
  Mathematics and Computers in Simulation 2026 DOI: 10.1016/j.matcom.2025.11.016
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• The Role of Selective Predation in Predator–Prey Systems with Indirectly Transmitted Disease in Prey
  International Journal of Bifurcation and Chaos 2026 DOI: 10.1142/S0218127426501129
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• Impacts of refuge and additional foods on the spatiotemporal dynamics of a prey-predator system in a time-periodic environment
  European Physical Journal Plus 2025 DOI: 10.1140/epjp/s13360-025-06253-9
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• Stability and bifurcation analysis of a predator–prey system with feedback-controlled odour and wind-driven decay
  Mathematical Biosciences 2025 DOI: 10.1016/j.mbs.2025.109561
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• Spatio-temporal dynamics of a predator–prey system with variable carrying capacity and Cosner response function
  Franklin Open 2025 DOI: 10.1016/j.fraope.2025.100289
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• Fractional and stochastic dynamics of predator–prey systems: The role of fear and global warming
  European Physical Journal B 2025 DOI: 10.1140/epjb/s10051-025-00992-5
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• Fear and its carry-over effects in a generalist predator–prey system featuring cooperative hunting
  Journal of Applied Mathematics and Computing 2025 DOI: 10.1007/s12190-024-02346-3
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• Ecological sensitivities to the interplay of Allee effects, prey refuge and supplementary food resources in a predator–prey system
  European Physical Journal B 2025 DOI: 10.1140/epjb/s10051-025-01050-w
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