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ORCIDRanjit Kumar Upadhyay
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Journal Articles
- 2025
[j48]Jiawen Jia, Dongpo Hu, Ranjit Kumar Upadhyay, Zhaowen Zheng, Ningning Zhu, Ming Liu:
Canard cycle, relaxation oscillation and cross-diffusion induced pattern formation in a slow-fast ecological system with weak Allee effect. Commun. Nonlinear Sci. Numer. Simul. 140: 108360 (2025)- [j47]Ranjit Kumar Upadhyay, Debasish Pradhan, Rana D. Parshad, Parimita Roy:
Existence of global attractor in reaction-diffusion model of obesity-induced Alzheimer's disease and its control strategies. Commun. Nonlinear Sci. Numer. Simul. 140: 108396 (2025) - [j46]Sayan Mandal, Sudip Samanta, Pankaj Kumar Tiwari
, Ranjit Kumar Upadhyay:
Bifurcation analysis and exploration of noise-induced transitions of a food chain model with Allee effect. Math. Comput. Simul. 228: 313-338 (2025) - 2024
- [j45]Bichitra Kumar Lenka, Ranjit Kumar Upadhyay:
New results on dynamic output state feedback stabilization of some class of time-varying nonlinear Caputo derivative systems. Commun. Nonlinear Sci. Numer. Simul. 131: 107805 (2024) - [j44]Bichitra Kumar Lenka, Ranjit Kumar Upadhyay:
Global Stabilization of Incommensurate Real Order Time-Varying Nonlinear Uncertain Systems. IEEE Trans. Circuits Syst. II Express Briefs 71(3): 1176-1180 (2024) - 2023
- [j43]Eric M. Takyi, Rana D. Parshad, Ranjit Kumar Upadhyay, Vikas Rai:
Blow-Up Dynamics and Synchronization in Tri-Trophic Food Chain Models. Algorithms 16(4): 180 (2023) - [j42]Sattwika Acharya, Ranjit Kumar Upadhyay, Bapin Mondal:
Impact of Allee Effect on the Spatio-Temporal Behavior of a Diffusive Epidemic Model in Heterogenous Environment. Int. J. Bifurc. Chaos 33(16): 2350194:1-2350194:27 (2023) - [j41]Kaushik Dehingia, Parthasakha Das, Ranjit Kumar Upadhyay, Arvind Kumar Misra, Fathalla A. Rihan, Kamyar Hosseini:
Modelling and analysis of delayed tumour-immune system with hunting T-cells. Math. Comput. Simul. 203: 669-684 (2023) - 2022
- [j40]Arnab Mondal, Ranjit Kumar Upadhyay, Argha Mondal, Sanjeev Kumar Sharma:
Emergence of Turing patterns and dynamic visualization in excitable neuron model. Appl. Math. Comput. 423: 127010 (2022) - [j39]Ranjit Kumar Upadhyay, Dibakar Ghosh, M. A. Aziz-Alaoui, Muhammet Uzuntarla:
Editorial: Modeling brain function at the level of neurons and circuits via computational and data-driven approaches. Frontiers Comput. Neurosci. 16 (2022) - [j38]Ranjit Kumar Upadhyay, Sourin Chatterjee, Parimita Roy, Dyuti Bhardwaj:
Combating COVID-19 crisis and predicting the second wave in Europe: an Age-structured modeling. J. Appl. Math. Comput. 68(6): 4669-4689 (2022) - [j37]Sarita Kumari, Satish Kumar Tiwari, Ranjit Kumar Upadhyay:
Cross diffusion induced spatiotemporal pattern in diffusive nutrient-plankton model with nutrient recycling. Math. Comput. Simul. 202: 246-272 (2022) - 2021
- [j36]Ranjit Kumar Upadhyay:
Conserving the European Bonelli's eagle in spatiotemporal domain: Lesson from its feeding pattern. Comput. Math. Methods 3(5) (2021) - [j35]Sanjeev Kumar Sharma, Arnab Mondal, Argha Mondal, Ranjit Kumar Upadhyay, Jun Ma:
Synchronization and Pattern Formation in a Memristive Diffusive Neuron Model. Int. J. Bifurc. Chaos 31(11): 2130030:1-2130030:16 (2021) - [j34]Sangeeta Kumari, Ranjit Kumar Upadhyay:
Exploring the behavior of malware propagation on mobile wireless sensor networks: Stability and control analysis. Math. Comput. Simul. 190: 246-269 (2021) - [j33]Sangeeta Kumari, Ranjit Kumar Upadhyay:
Exploring the Dynamics of a Malware Propagation Model and Its Control Strategy. Wirel. Pers. Commun. 121(3): 1945-1978 (2021) - 2020
- [j32]Vandana Tiwari, Jai Prakash Tripathi, Swati Mishra, Ranjit Kumar Upadhyay:
Modeling the fear effect and stability of non-equilibrium patterns in mutually interfering predator-prey systems. Appl. Math. Comput. 371 (2020) - [j31]Vandana Tiwari, Jai Prakash Tripathi, Debaldev Jana, Satish Kumar Tiwari, Ranjit Kumar Upadhyay:
Exploring Complex Dynamics of Spatial Predator-Prey System: Role of Predator Interference and Additional Food. Int. J. Bifurc. Chaos 30(7): 2050102:1-2050102:26 (2020) - [j30]Debaldev Jana, Ranjit Kumar Upadhyay, Rashmi Agrawal, Rana D. Parshad, Aladeen Al Basheer:
Explosive tritrophic food chain models with interference: A comparative study. J. Frankl. Inst. 357(1): 385-413 (2020) - 2019
- [j29]Sangeeta Kumari, Prerna Singh, Ranjit Kumar Upadhyay:
Virus dynamics of a distributed attack on a targeted network: Effect of firewall and optimal control. Commun. Nonlinear Sci. Numer. Simul. 73: 74-91 (2019) - [j28]Ranjit Kumar Upadhyay, Rana D. Parshad, Kwadwo Antwi-Fordjour, Emmanuel Quansah, Sarita Kumari:
Global dynamics of stochastic predator-prey model with mutual interference and prey defense. J. Appl. Math. Comput. 60(1-2): 169-190 (2019) - [j27]Renu Verma, S. P. Tiwari, Ranjit Kumar Upadhyay:
Transmission dynamics of epidemic spread and outbreak of Ebola in West Africa: fuzzy modeling and simulation. J. Appl. Math. Comput. 60(1-2): 637-671 (2019) - 2018
- [j26]Ranjit Kumar Upadhyay, Chinmoy Paul, Argha Mondal, Gajendra K. Vishwakarma:
Estimation of biophysical parameters in a neuron model under random fluctuations. Appl. Math. Comput. 329: 364-373 (2018) - [j25]Wondimu Teka, Ranjit Kumar Upadhyay, Argha Mondal:
Spiking and bursting patterns of fractional-order Izhikevich model. Commun. Nonlinear Sci. Numer. Simul. 56: 161-176 (2018) - [j24]Zizhen Zhang, Ranjit Kumar Upadhyay, Rashmi Agrawal, Jyotiska Datta:
The Gestation Delay: A Factor Causing Complex Dynamics in Gause-Type Competition Models. Complex. 2018: 1589310:1-1589310:21 (2018) - [j23]Ranjit Kumar Upadhyay, Jyotiska Datta, Yueping Dong, Yasuhiro Takeuchi:
Emergence of Spatial Patterns in a Damaged Diffusive Eco-Epidemiological System. Int. J. Bifurc. Chaos 28(9): 1830028:1-1830028:24 (2018) - [j22]Ranjit Kumar Upadhyay, Sangeeta Kumari:
Bifurcation analysis of an e-epidemic model in wireless sensor network. Int. J. Comput. Math. 95(9): 1775-1805 (2018) - [j21]Ranjit Kumar Upadhyay, Sangeeta Kumari:
Global Stability of Worm Propagation Model with Nonlinear Incidence Rate in Computer Network. Int. J. Netw. Secur. 20(3): 515-526 (2018) - 2017
- [j20]Ranjit Kumar Upadhyay, Argha Mondal, Wondimu Teka:
Mixed Mode Oscillations and Synchronous Activity in Noise Induced Modified Morris-Lecar Neural System. Int. J. Bifurc. Chaos 27(5): 1730019:1-1730019:27 (2017) - [j19]Wondimu Teka, Ranjit Kumar Upadhyay, Argha Mondal:
Fractional-order leaky integrate-and-fire model with long-term memory and power law dynamics. Neural Networks 93: 110-125 (2017) - 2016
- [j18]Rana D. Parshad, Emmanuel Quansah, Kelly J. Black, Ranjit Kumar Upadhyay, Satish Kumar Tiwari, Nitu Kumari:
Long time dynamics of a three-species food chain model with Allee effect in the top predator. Comput. Math. Appl. 71(2): 503-528 (2016) - [j17]Rana D. Parshad, Suman Bhowmick, Emmanuel Quansah, Aladeen Al Basheer, Ranjit Kumar Upadhyay:
Predator interference effects on biological control: The "paradox" of the generalist predator revisited. Commun. Nonlinear Sci. Numer. Simul. 39: 169-184 (2016) - [j16]Ranjit Kumar Upadhyay, Parimita Roy:
Disease Spread and Its Effect on Population Dynamics in Heterogeneous Environment. Int. J. Bifurc. Chaos 26(1): 1650004:1-1650004:27 (2016) - [j15]Ranjit Kumar Upadhyay, Parimita Roy:
Deciphering Dynamics of Recent Epidemic Spread and Outbreak in West Africa: The Case of Ebola Virus. Int. J. Bifurc. Chaos 26(9): 1630024:1-1630024:25 (2016) - 2015
- [j14]Debaldev Jana, Rashmi Agrawal, Ranjit Kumar Upadhyay:
Dynamics of generalist predator in a stochastic environment: Effect of delayed growth and prey refuge. Appl. Math. Comput. 268: 1072-1094 (2015) - [j13]Ranjit Kumar Upadhyay, Satish Kumar Tiwari, Parimita Roy:
Complex Dynamics of Wetland Ecosystem with Nonlinear Harvesting: Application to Chilika Lake in Odisha, India. Int. J. Bifurc. Chaos 25(7): 1540016:1-1540016:25 (2015) - 2014
- [j12]Ranjit Kumar Upadhyay, Parimita Roy:
Spread of a disease and its effect on population dynamics in an eco-epidemiological system. Commun. Nonlinear Sci. Numer. Simul. 19(12): 4170-4184 (2014) - [j11]Ranjit Kumar Upadhyay, Parimita Roy, Vikas Rai:
Deciphering Dynamics of Epidemic Spread: The Case of Influenza Virus. Int. J. Bifurc. Chaos 24(5) (2014) - 2013
- [j10]Shuling Yan, Xinzhe Lian, Weiming Wang, Ranjit Kumar Upadhyay:
Spatiotemporal dynamics in a delayed diffusive predator model. Appl. Math. Comput. 224: 524-534 (2013) - [j9]Ranjit Kumar Upadhyay, Raid Kamel Naji, Sharada Nandan Raw, Balram Dubey:
The role of top predator interference on the dynamics of a food chain model. Commun. Nonlinear Sci. Numer. Simul. 18(3): 757-768 (2013) - 2012
- [j8]Vikas Rai, Sreenivasan Rajamoni Nadar, Ranjit Kumar Upadhyay:
Nonlinear Phenomena in Biology and Medicine. Comput. Math. Methods Medicine 2012: 183879:1-183879:2 (2012) - 2011
- [j7]Ranjit Kumar Upadhyay, Vikas Rai, Sharada Nandan Raw:
Challenges of living in the harsh environments: A mathematical modeling study. Appl. Math. Comput. 217(24): 10105-10117 (2011) - [j6]Ranjit Kumar Upadhyay, N. K. Thakur, Vikas Rai:
Diffusion-Driven Instabilities and Spatio-Temporal Patterns in an Aquatic predator-prey System with Beddington-Deangelis Type Functional Response. Int. J. Bifurc. Chaos 21(3): 663-684 (2011) - 2010
- [j5]Xiang-Jun Wu, Jie Li, Ranjit Kumar Upadhyay:
Chaos control and synchronization of a three-species food chain model via Holling functional response. Int. J. Comput. Math. 87(1): 199-214 (2010) - 2009
- [j4]Ranjit Kumar Upadhyay:
Dynamics of an ecological model living on the edge of chaos. Appl. Math. Comput. 210(2): 455-464 (2009) - [j3]Ranjit Kumar Upadhyay:
Observability of Chaos and Cycles in Ecological Systems: Lessons from predator-prey Models. Int. J. Bifurc. Chaos 19(10): 3169-3234 (2009) - 2008
- [j2]Ranjit Kumar Upadhyay, Nandadulal Bairagi, Kusumika Kundu, Joydev Chattopadhyay:
Chaos in eco-epidemiological problem of the Salton Sea and its possible control. Appl. Math. Comput. 196(1): 392-401 (2008) - 2006
- [j1]Ranjit Kumar Upadhyay, S. R. K. Iyengar:
Extinction and coexistence of competing prey species in ecological systems. J. Comput. Methods Sci. Eng. 6(1-4): 131-150 (2006)
Conference and Workshop Papers
- 2017
- [c2]Renu Verma, S. P. Tiwari, Ranjit Kumar Upadhyay:
Dynamical Behaviors of Fuzzy SIR Epidemic Model. EUSFLAT/IWIFSGN (3) 2017: 482-492 - 2014
- [c1]Parimita Roy, Ranjit Kumar Upadhyay:
Modeling the Complex Dynamics of Epidemic Spread Under Allee Effect. RAIT 2014: 117-124
Coauthor Index
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