Edit Profile Kumar Upadhyay, Ranjit Compute Distance To: Compute Author ID: kumar-upadhyay.ranjit Published as: Kumar Upadhyay, Ranjit; Upadhyay, Ranjit Kumar Documents Indexed: 84 Publications since 1998, including 2 Books all top 5 Co-Authors 3 single-authored 17 Rai, Vikas 10 Agrawal, Rashmi 10 Parshad, Rana D. 10 Roy, Parimita 8 Jana, Debaldev 8 Kumari, Nitu 8 Thakur, Nilesh Kumar 7 Iyengar, Satteluri R. K. 7 Mondal, Argha 7 Tiwari, Satish Kumar 5 Datta, Jyotiska 5 Dubey, Balram 5 Kumari, Sangeeta 5 Quansah, Emmanuel 5 Zhang, Zizhen 4 Sree Hari Rao, V. 3 Mishra, Swati 3 Naji, Raid Kamel 3 Raw, Sharada Nandan 3 Teka, Wondimu 2 Basheer, Aladeen 2 Bhowmick, Suman 2 Kumari, Sarita 2 Tiwari, Vandana 2 Tripathi, Jai Prakash 1 Abderrahmane, Hamid Ait 1 Al Basheer, Aladeen 1 Antwi-Fordjour, Kwadwo 1 Aziz-Alaoui, Moulay-Ahmed 1 Banerjee, Malay 1 Bi, Dianjie 1 Black, Kelly 1 Caur, Jasmine 1 Chu, Yugui 1 Das, Parthasakha 1 Das, Pritha 1 Dong, Yueping 1 Ghosh, Dibakar 1 Gupta, Rashi 1 Li, Jie 1 Madzvamuse, Anotida 1 Misra, Arvind Kumar 1 Mondal, Arnab 1 Patra, Atasi 1 Paul, Chinmoy 1 Raw, Sharada Nandn 1 Samanta, Guru Prasad 1 Sharma, Sanjeev Kumar 1 Sharma, Swarnali 1 Singh, Prerna 1 Takeuchi, Yasuhiro 1 Tiwari, S. P. 1 Venkataraman, Chandrasekhar 1 Verma, Renu 1 Vishwakarma, Gajendra K. 1 Wei, Ruibin 1 Wu, Xiangjun 1 Yu, Shengbin 1 Zhao, Tao all top 5 Serials 14 Chaos, Solitons and Fractals 10 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 6 Journal of Applied Mathematics and Computing 5 Communications in Nonlinear Science and Numerical Simulation 5 Journal of Biological Systems 4 Applied Mathematics and Computation 4 Nonlinear Analysis. Real World Applications 3 Mathematical Biosciences 3 Applied Mathematical Modelling 3 International Journal of Biomathematics 2 Nonlinear Dynamics 2 Chaos 2 International Journal of Nonlinear Sciences and Numerical Simulation 2 Advances in Difference Equations 1 Computers & Mathematics with Applications 1 Journal of the Franklin Institute 1 Journal of Mathematical Analysis and Applications 1 Mathematical Methods in the Applied Sciences 1 Neural Networks 1 International Journal of Computer Mathematics 1 Complexity 1 Differential Equations and Dynamical Systems 1 Discrete Dynamics in Nature and Society 1 The ANZIAM Journal 1 Nonlinear Analysis. Modelling and Control 1 Mathematical Modelling and Analysis 1 Journal of Zhejiang University. Science Edition 1 Journal of Computational Methods in Sciences and Engineering 1 Applied Mathematical Sciences (Ruse) 1 Asian-European Journal of Mathematics 1 ISRN Biomathematics all top 5 Fields 74 Biology and other natural sciences (92-XX) 36 Ordinary differential equations (34-XX) 33 Dynamical systems and ergodic theory (37-XX) 22 Partial differential equations (35-XX) 5 Numerical analysis (65-XX) 5 Computer science (68-XX) 3 Calculus of variations and optimal control; optimization (49-XX) 3 Systems theory; control (93-XX) 2 General and overarching topics; collections (00-XX) 2 Probability theory and stochastic processes (60-XX) 2 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Real functions (26-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH 65 Publications have been cited 458 times in 302 Documents Cited by ▼ Year ▼ Chaos: An ecological reality? Zbl 0935.92037Upadhyay, Ranjit Kumar; Iyengar, S. R. K.; Rai, Vikas 40 1998 Effect of seasonality on the dynamics of 2 and 3 species prey - predator systems. Zbl 1072.92058Upadhyay, Ranjit Kumar; Iyengar, S. R. K. 37 2005 Dynamics of a three species food chain model with Crowley-Martin type functional response. Zbl 1198.37132Upadhyay, Ranjit Kumar; Naji, Raid Kamel 27 2009 Crisis-limited chaotic dynamics in ecological systems. Zbl 0977.92033Upadhyay, Ranjit Kumar; Rai, Vikas 24 2001 Top-predator interference and gestation delay as determinants of the dynamics of a realistic model food chain. Zbl 1352.92126Jana, Debaldev; Agrawal, Rashmi; Upadhyay, Ranjit Kumar 19 2014 Chaotic population dynamics and biology of the top-predator. Zbl 1057.92056Rai, Vikas; Upadhyay, Ranjit Kumar 19 2004 Multiple attractors and crisis route to chaos in a model food-chain. Zbl 1033.92038Upadhyay, Ranjit Kumar 15 2003 Wave of chaos in a diffusive system: generating realistic patterns of patchiness in plankton-fish dynamics. Zbl 1197.37121Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 14 2009 Stability and complexity in ecological systems. Zbl 0943.92033Upadhyay, Ranjit Kumar; Iyengar, S. R. K.; Rai, Vikas 14 2000 Introduction to mathematical modeling and chaotic dynamics. Zbl 1302.00059Kumar Upadhyay, Ranjit; Iyengar, Satteluri R. K. 13 2014 Complex dynamics of a three species food-chain model with Holling type IV functional response. Zbl 1272.49085Upadhyay, Ranjit Kumar; Raw, Sharada Nandan 13 2011 Spatiotemporal pattern formation in a diffusive predator-prey system: An analytical approach. Zbl 1181.35022Dubey, Balram; Kumari, Nitu; Upadhyay, Ranjit Kumar 13 2009 The role of top predator interference on the dynamics of a food chain model. Zbl 1277.92035Upadhyay, Ranjit Kumar; Naji, Raid Kamel; Raw, Sharada Nandn; Dubey, Balram 12 2013 Complex dynamics of ecological systems under nonlinear harvesting: Hopf bifurcation and Turing instability. Zbl 1331.92136Upadhyay, Ranjit Kumar; Roy, Parimita; Datta, Jyotiska 11 2015 Chaos control and synchronization of a three-species food chain model via Holling functional response. Zbl 1179.92068Wu, Xiang-Jun; Li, Jie; Upadhyay, Ranjit Kumar 10 2010 Evolving to the edge of chaos: Chance or necessity? Zbl 1142.92344Rai, Vikas; Upadhyay, Ranjit Kumar 10 2006 Complex dynamics and synchronization in two non-identical chaotic ecological systems. Zbl 1198.37133Upadhyay, Ranjit Kumar; Rai, Vikas 9 2009 Dynamics and responses of a predator-prey system with competitive interference and time delay. Zbl 1349.37092Upadhyay, Ranjit Kumar; Agrawal, Rashmi 8 2016 Exploring dynamical complexity in diffusion driven predator-prey systems: effect of toxin producing phytoplankton and spatial heterogeneities. Zbl 1198.37131Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 8 2009 Observability of chaos and cycles in ecological systems: lessons from predator-prey models. Zbl 1182.92067Upadhyay, Ranjit Kumar 8 2009 On the explosive instability in a three-species food chain model with modified Holling type IV functional response. Zbl 1382.35137Parshad, Rana D.; Upadhyay, Ranjit Kumar; Mishra, Swati; Tiwari, Satish Kumar; Sharma, Swarnali 7 2017 Restoration and recovery of damaged eco-epidemiological systems: application to the Salton Sea, California, USA. Zbl 1261.92060Upadhyay, Ranjit Kumar; Raw, S. N.; Roy, P.; Rai, Vikas 7 2013 Diffusion-driven instabilities and spatio-temporal patterns in an aquatic predator-prey system with Beddington-DeAngelis type functional response. Zbl 1215.35161Upadhyay, Ranjit Kumar; Thakur, N. K.; Rai, V. 7 2011 Short-term recurrent chaos and role of toxin producing phytoplankton (TPP) on chaotic dynamics in aquatic systems. Zbl 1197.37122Upadhyay, Ranjit Kumar; Rao, V. Sree Hari 7 2009 Complex dynamics of sexually reproductive generalist predator and gestation delay in a food chain model: double Hopf-bifurcation to chaos. Zbl 1375.92042Agrawal, Rashmi; Jana, Debaldev; Kumar Upadhyay, Ranjit; Rao, V. Sree Hari 6 2017 Modeling the virus dynamics in computer network with SVEIR model and nonlinear incident rate. Zbl 1377.34066Upadhyay, Ranjit Kumar; Kumari, Sangeeta; Misra, A. K. 6 2017 Finite time blowup in a realistic food-chain model. Zbl 1300.92085Parshad, Rana D.; Abderrahmane, Hamid Ait; Upadhyay, Ranjit Kumar; Kumari, Nitu 6 2013 Ecological chaos and the choice of optimal harvesting policy. Zbl 1353.92109Upadhyay, Ranjit Kumar; Tiwari, S. K. 5 2017 Dynamical consequences of predator interference in a tri-trophic model food chain. Zbl 1181.37120Naji, Raid Kamel; Upadhyay, Ranjit Kumar; Rai, Vikas 5 2010 Modeling the spread of bird flu and predicting outbreak diversity. Zbl 1154.92324Upadhyay, Ranjit Kumar; Kumari, Nitu; Rao, V. Sree Hari 5 2008 Synchronization of bursting neurons with a slowly varying d. c. current. Zbl 1373.92030Upadhyay, Ranjit Kumar; Mondal, Argha 4 2017 Mixed mode oscillations and synchronous activity in noise induced modified Morris-Lecar neural system. Zbl 1367.34067Upadhyay, Ranjit Kumar; Mondal, Argha; Teka, Wondimu W. 4 2017 Dynamics of generalist predator in a stochastic environment: effect of delayed growth and prey refuge. Zbl 1410.34136Jana, Debaldev; Agrawal, Rashmi; Upadhyay, Ranjit Kumar 4 2015 Modeling the effect of mutual interference in a delay-induced predator-prey system. Zbl 1358.37126Upadhyay, Ranjit Kumar; Agrawal, Rashmi 4 2015 Deciphering dynamics of epidemic spread: the case of influenza virus. Zbl 1296.35201Upadhyay, Ranjit Kumar; Roy, Parimita; Rai, Vikas 4 2014 Nonlinear non-equilibrium pattern formation in a spatial aquatic system: effect of fish predation. Zbl 1342.92034Upadhyay, Ranjit Kumar; Thakur, N. K.; Dubey, B. 4 2010 Species extinction problem: genetic vs ecological factors. Zbl 0987.92031Upadhyay, Ranjit Kumar; Rai, Vikas; Iyengar, S. R. K. 4 2001 Exploring the dynamics of a Holling-Tanner model with cannibalism in both predator and prey population. Zbl 1381.92072Al Basheer, Aladeen; Parshad, Rana D.; Quansah, Emmanuel; Yu, Shengbin; Kumar Upadhyay, Ranjit 3 2018 Ecological dynamics of age selective harvesting of fish population: maximum sustainable yield and its control strategy. Zbl 1372.92083Jana, Debaldev; Agrawal, Rashmi; Upadhyay, Ranjit Kumar; Samanta, G. P. 3 2016 Wave of chaos in a spatial eco-epidemiological system: generating realistic patterns of patchiness in rabbit-lynx dynamics. Zbl 1348.92134Upadhyay, Ranjit Kumar; Roy, Parimita; Venkataraman, C.; Madzvamuse, A. 3 2016 Complex population dynamics in heterogeneous environments: effects of random and directed animal movements. Zbl 1401.92164Rai, Vikas; Upadhyay, Ranjit Kumar; Thakur, Nilesh Kumar 3 2012 Global dynamics of stochastic predator-prey model with mutual interference and prey defense. Zbl 1431.92125Upadhyay, Ranjit Kumar; Parshad, Rana D.; Antwi-Fordjour, Kwadwo; Quansah, Emmanuel; Kumari, Sarita 2 2019 Bifurcation analysis of a modified Leslie-Gower model with Holling type-IV functional response and nonlinear prey harvesting. Zbl 1445.37075Zhang, Zizhen; Upadhyay, Ranjit Kumar; Datta, Jyotiska 2 2018 Emergence of spatial patterns in a damaged diffusive eco-epidemiological system. Zbl 1401.35296Upadhyay, Ranjit Kumar; Datta, Jyotiska; Dong, Yueping; Takeuchi, Yasuhiro 2 2018 Complex dynamics of diffusive predator-prey system with Beddington-DeAngelis functional response: the role of prey-taxis. Zbl 1372.92093Thakur, Nilesh Kumar; Gupta, Rashi; Upadhyay, Ranjit Kumar 2 2017 Disease spread and its effect on population dynamics in heterogeneous environment. Zbl 1334.35355Upadhyay, Ranjit Kumar; Roy, Parimita 2 2016 Spread of a disease and its effect on population dynamics in an eco-epidemiological system. Zbl 07175206Upadhyay, Ranjit Kumar; Roy, Parimita 2 2014 Modeling spatiotemporal dynamics of vole populations in Europe and America. Zbl 1181.92087Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 2 2010 Wave phenomena and edge of chaos in a diffusive predator-prey system under Allee effect. Zbl 1211.37120Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 2 2009 Dynamics of an ecological model living on the edge of chaos. Zbl 1162.92337Upadhyay, Ranjit Kumar 2 2009 Strategies for the existence of spatial patterns in predator-prey communities generated by cross-diffusion. Zbl 1430.92073Mishra, Swati; Upadhyay, Ranjit Kumar 1 2020 Transmission dynamics of epidemic spread and outbreak of Ebola in West Africa: fuzzy modeling and simulation. Zbl 1422.92171Verma, Renu; Tiwari, S. P.; Upadhyay, Ranjit Kumar 1 2019 Estimation of biophysical parameters in a neuron model under random fluctuations. Zbl 1427.92034Upadhyay, Ranjit Kumar; Paul, Chinmoy; Mondal, Argha; Vishwakarma, Gajendra K. 1 2018 The gestation delay: a factor causing complex dynamics in Gause-type competition models. Zbl 1407.92119Zhang, Zizhen; Upadhyay, Ranjit Kumar; Agrawal, Rashmi; Datta, Jyotiska 1 2018 Dynamics of a modified excitable neuron model: diffusive instabilities and traveling wave solutions. Zbl 1403.92043Mondal, Argha; Upadhyay, Ranjit Kumar; Mondal, Arnab; Sharma, Sanjeev Kumar 1 2018 Dynamic relationship between the mutual interference and gestation delays of a hybrid tritrophic food chain model. Zbl 1431.92120Agrawal, Rashmi; Jana, Debaldev; Upadhyay, Ranjit Kumar; Sree Hari Rao, V. 1 2018 Fractional-order leaky integrate-and-fire model with long-term memory and power law dynamics. Zbl 1431.92025Teka, Wondimu W.; Upadhyay, Ranjit Kumar; Mondal, Argha 1 2017 Synchronization analysis through coupling mechanism in realistic neural models. Zbl 1443.34050Kumar Upadhyay, Ranjit; Mondal, Argha; Aziz-Alaoui, M. A. 1 2017 Spatiotemporal transmission dynamics of recent Ebola outbreak in Sierra Leone, West Africa: impact of control measures. Zbl 1398.92250Roy, Parimita; Upadhyay, Ranjit Kumar 1 2017 Finite time blow-up in a delayed diffusive population model with competitive interference. Zbl 1401.35185Parshad, Rana D.; Bhowmick, Suman; Quansah, Emmanuel; Agrawal, Rashmi; Upadhyay, Ranjit Kumar 1 2017 Diffusive three species plankton model in the presence of toxic prey: application to Sundarban mangrove wetland. Zbl 1376.92052Thakur, Nilesh Kumar; Tiwari, S. K.; Dubey, B.; Upadhyay, Ranjit Kumar 1 2017 Deciphering dynamics of recent epidemic spread and outbreak in West Africa: the case of Ebola virus. Zbl 1347.35225Upadhyay, Ranjit Kumar; Roy, Parimita 1 2016 Harmful algal blooms in fresh and marine water systems: the role of toxin producing phytoplankton. Zbl 1338.92114Thakur, Nilesh Kumar; Tiwari, S. K.; Upadhyay, Ranjit Kumar 1 2016 Deterministic chaos versus stochastic oscillation in a prey-predator-top predator model. Zbl 1233.37060Upadhyay, Ranjit Kumar; Banerjee, Malay; Parshad, Rana; Raw, Sharada Nandan 1 2011 Extinction and coexistence of competing prey species in ecological systems. Zbl 1112.92069Upadhyay, Ranjit Kumar; Iyengar, S. R. K. 1 2006 Strategies for the existence of spatial patterns in predator-prey communities generated by cross-diffusion. Zbl 1430.92073Mishra, Swati; Upadhyay, Ranjit Kumar 1 2020 Global dynamics of stochastic predator-prey model with mutual interference and prey defense. Zbl 1431.92125Upadhyay, Ranjit Kumar; Parshad, Rana D.; Antwi-Fordjour, Kwadwo; Quansah, Emmanuel; Kumari, Sarita 2 2019 Transmission dynamics of epidemic spread and outbreak of Ebola in West Africa: fuzzy modeling and simulation. Zbl 1422.92171Verma, Renu; Tiwari, S. P.; Upadhyay, Ranjit Kumar 1 2019 Exploring the dynamics of a Holling-Tanner model with cannibalism in both predator and prey population. Zbl 1381.92072Al Basheer, Aladeen; Parshad, Rana D.; Quansah, Emmanuel; Yu, Shengbin; Kumar Upadhyay, Ranjit 3 2018 Bifurcation analysis of a modified Leslie-Gower model with Holling type-IV functional response and nonlinear prey harvesting. Zbl 1445.37075Zhang, Zizhen; Upadhyay, Ranjit Kumar; Datta, Jyotiska 2 2018 Emergence of spatial patterns in a damaged diffusive eco-epidemiological system. Zbl 1401.35296Upadhyay, Ranjit Kumar; Datta, Jyotiska; Dong, Yueping; Takeuchi, Yasuhiro 2 2018 Estimation of biophysical parameters in a neuron model under random fluctuations. Zbl 1427.92034Upadhyay, Ranjit Kumar; Paul, Chinmoy; Mondal, Argha; Vishwakarma, Gajendra K. 1 2018 The gestation delay: a factor causing complex dynamics in Gause-type competition models. Zbl 1407.92119Zhang, Zizhen; Upadhyay, Ranjit Kumar; Agrawal, Rashmi; Datta, Jyotiska 1 2018 Dynamics of a modified excitable neuron model: diffusive instabilities and traveling wave solutions. Zbl 1403.92043Mondal, Argha; Upadhyay, Ranjit Kumar; Mondal, Arnab; Sharma, Sanjeev Kumar 1 2018 Dynamic relationship between the mutual interference and gestation delays of a hybrid tritrophic food chain model. Zbl 1431.92120Agrawal, Rashmi; Jana, Debaldev; Upadhyay, Ranjit Kumar; Sree Hari Rao, V. 1 2018 On the explosive instability in a three-species food chain model with modified Holling type IV functional response. Zbl 1382.35137Parshad, Rana D.; Upadhyay, Ranjit Kumar; Mishra, Swati; Tiwari, Satish Kumar; Sharma, Swarnali 7 2017 Complex dynamics of sexually reproductive generalist predator and gestation delay in a food chain model: double Hopf-bifurcation to chaos. Zbl 1375.92042Agrawal, Rashmi; Jana, Debaldev; Kumar Upadhyay, Ranjit; Rao, V. Sree Hari 6 2017 Modeling the virus dynamics in computer network with SVEIR model and nonlinear incident rate. Zbl 1377.34066Upadhyay, Ranjit Kumar; Kumari, Sangeeta; Misra, A. K. 6 2017 Ecological chaos and the choice of optimal harvesting policy. Zbl 1353.92109Upadhyay, Ranjit Kumar; Tiwari, S. K. 5 2017 Synchronization of bursting neurons with a slowly varying d. c. current. Zbl 1373.92030Upadhyay, Ranjit Kumar; Mondal, Argha 4 2017 Mixed mode oscillations and synchronous activity in noise induced modified Morris-Lecar neural system. Zbl 1367.34067Upadhyay, Ranjit Kumar; Mondal, Argha; Teka, Wondimu W. 4 2017 Complex dynamics of diffusive predator-prey system with Beddington-DeAngelis functional response: the role of prey-taxis. Zbl 1372.92093Thakur, Nilesh Kumar; Gupta, Rashi; Upadhyay, Ranjit Kumar 2 2017 Fractional-order leaky integrate-and-fire model with long-term memory and power law dynamics. Zbl 1431.92025Teka, Wondimu W.; Upadhyay, Ranjit Kumar; Mondal, Argha 1 2017 Synchronization analysis through coupling mechanism in realistic neural models. Zbl 1443.34050Kumar Upadhyay, Ranjit; Mondal, Argha; Aziz-Alaoui, M. A. 1 2017 Spatiotemporal transmission dynamics of recent Ebola outbreak in Sierra Leone, West Africa: impact of control measures. Zbl 1398.92250Roy, Parimita; Upadhyay, Ranjit Kumar 1 2017 Finite time blow-up in a delayed diffusive population model with competitive interference. Zbl 1401.35185Parshad, Rana D.; Bhowmick, Suman; Quansah, Emmanuel; Agrawal, Rashmi; Upadhyay, Ranjit Kumar 1 2017 Diffusive three species plankton model in the presence of toxic prey: application to Sundarban mangrove wetland. Zbl 1376.92052Thakur, Nilesh Kumar; Tiwari, S. K.; Dubey, B.; Upadhyay, Ranjit Kumar 1 2017 Dynamics and responses of a predator-prey system with competitive interference and time delay. Zbl 1349.37092Upadhyay, Ranjit Kumar; Agrawal, Rashmi 8 2016 Ecological dynamics of age selective harvesting of fish population: maximum sustainable yield and its control strategy. Zbl 1372.92083Jana, Debaldev; Agrawal, Rashmi; Upadhyay, Ranjit Kumar; Samanta, G. P. 3 2016 Wave of chaos in a spatial eco-epidemiological system: generating realistic patterns of patchiness in rabbit-lynx dynamics. Zbl 1348.92134Upadhyay, Ranjit Kumar; Roy, Parimita; Venkataraman, C.; Madzvamuse, A. 3 2016 Disease spread and its effect on population dynamics in heterogeneous environment. Zbl 1334.35355Upadhyay, Ranjit Kumar; Roy, Parimita 2 2016 Deciphering dynamics of recent epidemic spread and outbreak in West Africa: the case of Ebola virus. Zbl 1347.35225Upadhyay, Ranjit Kumar; Roy, Parimita 1 2016 Harmful algal blooms in fresh and marine water systems: the role of toxin producing phytoplankton. Zbl 1338.92114Thakur, Nilesh Kumar; Tiwari, S. K.; Upadhyay, Ranjit Kumar 1 2016 Complex dynamics of ecological systems under nonlinear harvesting: Hopf bifurcation and Turing instability. Zbl 1331.92136Upadhyay, Ranjit Kumar; Roy, Parimita; Datta, Jyotiska 11 2015 Dynamics of generalist predator in a stochastic environment: effect of delayed growth and prey refuge. Zbl 1410.34136Jana, Debaldev; Agrawal, Rashmi; Upadhyay, Ranjit Kumar 4 2015 Modeling the effect of mutual interference in a delay-induced predator-prey system. Zbl 1358.37126Upadhyay, Ranjit Kumar; Agrawal, Rashmi 4 2015 Top-predator interference and gestation delay as determinants of the dynamics of a realistic model food chain. Zbl 1352.92126Jana, Debaldev; Agrawal, Rashmi; Upadhyay, Ranjit Kumar 19 2014 Introduction to mathematical modeling and chaotic dynamics. Zbl 1302.00059Kumar Upadhyay, Ranjit; Iyengar, Satteluri R. K. 13 2014 Deciphering dynamics of epidemic spread: the case of influenza virus. Zbl 1296.35201Upadhyay, Ranjit Kumar; Roy, Parimita; Rai, Vikas 4 2014 Spread of a disease and its effect on population dynamics in an eco-epidemiological system. Zbl 07175206Upadhyay, Ranjit Kumar; Roy, Parimita 2 2014 The role of top predator interference on the dynamics of a food chain model. Zbl 1277.92035Upadhyay, Ranjit Kumar; Naji, Raid Kamel; Raw, Sharada Nandn; Dubey, Balram 12 2013 Restoration and recovery of damaged eco-epidemiological systems: application to the Salton Sea, California, USA. Zbl 1261.92060Upadhyay, Ranjit Kumar; Raw, S. N.; Roy, P.; Rai, Vikas 7 2013 Finite time blowup in a realistic food-chain model. Zbl 1300.92085Parshad, Rana D.; Abderrahmane, Hamid Ait; Upadhyay, Ranjit Kumar; Kumari, Nitu 6 2013 Complex population dynamics in heterogeneous environments: effects of random and directed animal movements. Zbl 1401.92164Rai, Vikas; Upadhyay, Ranjit Kumar; Thakur, Nilesh Kumar 3 2012 Complex dynamics of a three species food-chain model with Holling type IV functional response. Zbl 1272.49085Upadhyay, Ranjit Kumar; Raw, Sharada Nandan 13 2011 Diffusion-driven instabilities and spatio-temporal patterns in an aquatic predator-prey system with Beddington-DeAngelis type functional response. Zbl 1215.35161Upadhyay, Ranjit Kumar; Thakur, N. K.; Rai, V. 7 2011 Deterministic chaos versus stochastic oscillation in a prey-predator-top predator model. Zbl 1233.37060Upadhyay, Ranjit Kumar; Banerjee, Malay; Parshad, Rana; Raw, Sharada Nandan 1 2011 Chaos control and synchronization of a three-species food chain model via Holling functional response. Zbl 1179.92068Wu, Xiang-Jun; Li, Jie; Upadhyay, Ranjit Kumar 10 2010 Dynamical consequences of predator interference in a tri-trophic model food chain. Zbl 1181.37120Naji, Raid Kamel; Upadhyay, Ranjit Kumar; Rai, Vikas 5 2010 Nonlinear non-equilibrium pattern formation in a spatial aquatic system: effect of fish predation. Zbl 1342.92034Upadhyay, Ranjit Kumar; Thakur, N. K.; Dubey, B. 4 2010 Modeling spatiotemporal dynamics of vole populations in Europe and America. Zbl 1181.92087Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 2 2010 Dynamics of a three species food chain model with Crowley-Martin type functional response. Zbl 1198.37132Upadhyay, Ranjit Kumar; Naji, Raid Kamel 27 2009 Wave of chaos in a diffusive system: generating realistic patterns of patchiness in plankton-fish dynamics. Zbl 1197.37121Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 14 2009 Spatiotemporal pattern formation in a diffusive predator-prey system: An analytical approach. Zbl 1181.35022Dubey, Balram; Kumari, Nitu; Upadhyay, Ranjit Kumar 13 2009 Complex dynamics and synchronization in two non-identical chaotic ecological systems. Zbl 1198.37133Upadhyay, Ranjit Kumar; Rai, Vikas 9 2009 Exploring dynamical complexity in diffusion driven predator-prey systems: effect of toxin producing phytoplankton and spatial heterogeneities. Zbl 1198.37131Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 8 2009 Observability of chaos and cycles in ecological systems: lessons from predator-prey models. Zbl 1182.92067Upadhyay, Ranjit Kumar 8 2009 Short-term recurrent chaos and role of toxin producing phytoplankton (TPP) on chaotic dynamics in aquatic systems. Zbl 1197.37122Upadhyay, Ranjit Kumar; Rao, V. Sree Hari 7 2009 Wave phenomena and edge of chaos in a diffusive predator-prey system under Allee effect. Zbl 1211.37120Upadhyay, Ranjit Kumar; Kumari, Nitu; Rai, Vikas 2 2009 Dynamics of an ecological model living on the edge of chaos. Zbl 1162.92337Upadhyay, Ranjit Kumar 2 2009 Modeling the spread of bird flu and predicting outbreak diversity. Zbl 1154.92324Upadhyay, Ranjit Kumar; Kumari, Nitu; Rao, V. Sree Hari 5 2008 Evolving to the edge of chaos: Chance or necessity? Zbl 1142.92344Rai, Vikas; Upadhyay, Ranjit Kumar 10 2006 Extinction and coexistence of competing prey species in ecological systems. Zbl 1112.92069Upadhyay, Ranjit Kumar; Iyengar, S. R. K. 1 2006 Effect of seasonality on the dynamics of 2 and 3 species prey - predator systems. Zbl 1072.92058Upadhyay, Ranjit Kumar; Iyengar, S. R. K. 37 2005 Chaotic population dynamics and biology of the top-predator. Zbl 1057.92056Rai, Vikas; Upadhyay, Ranjit Kumar 19 2004 Multiple attractors and crisis route to chaos in a model food-chain. Zbl 1033.92038Upadhyay, Ranjit Kumar 15 2003 Crisis-limited chaotic dynamics in ecological systems. Zbl 0977.92033Upadhyay, Ranjit Kumar; Rai, Vikas 24 2001 Species extinction problem: genetic vs ecological factors. Zbl 0987.92031Upadhyay, Ranjit Kumar; Rai, Vikas; Iyengar, S. R. K. 4 2001 Stability and complexity in ecological systems. Zbl 0943.92033Upadhyay, Ranjit Kumar; Iyengar, S. R. K.; Rai, Vikas 14 2000 Chaos: An ecological reality? Zbl 0935.92037Upadhyay, Ranjit Kumar; Iyengar, S. R. K.; Rai, Vikas 40 1998 all cited Publications top 5 cited Publications all top 5 Cited by 525 Authors 50 Kumar Upadhyay, Ranjit 16 Parshad, Rana D. 12 Rai, Vikas 11 Kumari, Nitu 11 Wang, Weiming 11 Zhao, Min 8 Agrawal, Rashmi 8 Jana, Debaldev 8 Yu, Hengguo 8 Zhang, Zizhen 7 Aziz-Alaoui, Moulay-Ahmed 7 Dai, Chuanjun 7 Wang, Xiaoqin 6 Dubey, Balram 6 Lin, Xiaolin 6 Naji, Raid Kamel 6 Quansah, Emmanuel 6 Thakur, Nilesh Kumar 5 Agarwal, Ravi P. 5 Chattopadhyay, Joydev 5 Datta, Jyotiska 5 Roy, Parimita 5 Tiwari, Satish Kumar 5 Zhong, Shou-Ming 4 Beauregard, Matthew A. 4 Bi, Dianjie 4 Cai, Yongli 4 Gakkhar, Sunita 4 Iyengar, Satteluri R. K. 4 Kengne, Jacques 4 Letellier, Christophe 4 Lin, Yezhi 4 Tripathi, Jai Prakash 4 Upadhyay, Ranjit K. 4 Wu, Xiangjun 4 Zhao, Tao 3 Banerjee, Malay 3 Basheer, Aladeen 3 Dai, Binxiang 3 Das, Pritha 3 Dhar, Joydip 3 Kouachi, Said 3 Kundu, Soumen 3 Maitra, Sarit 3 Merdan, Hüseyin 3 Pal, Nikhil Ranjan 3 Raw, Sharada Nandan 3 Raw, Sharada Nandn 3 Sree Hari Rao, V. 3 Tang, Leiyu 3 Tian, Baodan 3 Tian, Yanling 3 Upadhyay, Rajnish Kant 3 Wang, Hailing 3 Yafia, Radouane 3 Yang, Ruizhi 2 Abderrahmane, Hamid Ait 2 Aguirre, Luis Antonio 2 Antwi-Fordjour, Kwadwo 2 Bairagi, Nandadulal 2 Bao, Bocheng 2 Bao, Han 2 Bashkirtseva, Irina Adol’fovna 2 Bhowmick, Suman 2 Black, Kelly 2 Bollt, Erik M. 2 Bouguima, Sidi Mohamed 2 Camara, Baba Issa 2 Chatterjee, Anal 2 Chen, Mo 2 Dong, Yaying 2 Duman, Oktay 2 Gomes, Alexandra A. 2 Gritli, Hassene 2 Han, Renji 2 Huang, Xuanxuan 2 Huo, Hai-Feng 2 Jungmann, Dirk 2 Kharbanda, Harsha 2 Kramer, Sean 2 Kumar, Ankit 2 Kumar, Sachin 2 Kumari, Sangeeta 2 Kumari, Sarita 2 Li, Shanbing 2 Li, Yanling 2 Li, Zhenqing 2 Liu, Zhijun 2 Lu, Hongtao 2 Lv, Songjuan 2 Mahapatra, Ghanshaym Singha 2 Mandal, Partha Sarathi 2 Manica, Evandro 2 Maquet, Jean 2 Meng, Xinyou 2 Mishra, Swati 2 Misra, Arvind Kumar 2 Misra, Om Prakash 2 Mohan, Nishith 2 Moussaoui, Ali ...and 425 more Authors all top 5 Cited in 71 Serials 53 Chaos, Solitons and Fractals 30 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 15 Applied Mathematics and Computation 13 Journal of Applied Mathematics and Computing 12 Nonlinear Analysis. Real World Applications 11 Nonlinear Dynamics 10 Communications in Nonlinear Science and Numerical Simulation 9 Advances in Difference Equations 8 Computers & Mathematics with Applications 8 Mathematical Biosciences 8 Applied Mathematical Modelling 8 Discrete Dynamics in Nature and Society 8 International Journal of Biomathematics 7 Complexity 6 Mathematical Problems in Engineering 5 Journal of Mathematical Analysis and Applications 5 Differential Equations and Dynamical Systems 4 Abstract and Applied Analysis 4 Chaos 4 Journal of Theoretical Biology 3 Journal of the Franklin Institute 3 Mathematical Methods in the Applied Sciences 3 Bulletin of Mathematical Biology 3 Journal of Biological Systems 3 Discrete and Continuous Dynamical Systems. Series B 3 Journal of Biological Dynamics 2 International Journal of Systems Science 2 Physica A 2 Automatica 2 Acta Applicandae Mathematicae 2 Nonlinear Analysis. Hybrid Systems 2 ISRN Biomathematics 2 International Journal of Applied and Computational Mathematics 1 Journal of Mathematical Biology 1 International Journal of Mathematics and Mathematical Sciences 1 Journal of Computational and Applied Mathematics 1 Journal of Differential Equations 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 Ricerche di Matematica 1 SIAM Journal on Control and Optimization 1 Theoretical Population Biology 1 Systems & Control Letters 1 Bulletin of the Iranian Mathematical Society 1 Mathematical and Computer Modelling 1 Applications of Mathematics 1 International Journal of Computer Mathematics 1 Computational and Applied Mathematics 1 NoDEA. Nonlinear Differential Equations and Applications 1 Journal of Mathematical Chemistry 1 Mathematical and Computer Modelling of Dynamical Systems 1 Qualitative Theory of Dynamical Systems 1 International Journal of Nonlinear Sciences and Numerical Simulation 1 The ANZIAM Journal 1 Nonlinear Analysis. Modelling and Control 1 Dynamics of Continuous, Discrete & Impulsive Systems. Series A. Mathematical Analysis 1 Dynamics of Continuous, Discrete & Impulsive Systems. Series B. Applications & Algorithms 1 Communications on Pure and Applied Analysis 1 SIAM Journal on Applied Dynamical Systems 1 Applications and Applied Mathematics 1 Mathematical Modelling of Natural Phenomena 1 Asian-European Journal of Mathematics 1 Advances in Mathematical Physics 1 International Journal of Differential Equations 1 Journal of the Korean Society for Industrial and Applied Mathematics 1 Journal of Applied Analysis and Computation 1 Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp’yuternye Nauki 1 Mathematics 1 International Journal of Engineering Mathematics 1 Nonautonomous Dynamical Systems 1 Journal of Function Spaces 1 Cogent Mathematics all top 5 Cited in 20 Fields 251 Biology and other natural sciences (92-XX) 146 Ordinary differential equations (34-XX) 102 Dynamical systems and ergodic theory (37-XX) 66 Partial differential equations (35-XX) 27 Systems theory; control (93-XX) 17 Numerical analysis (65-XX) 9 Information and communication theory, circuits (94-XX) 8 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 7 Calculus of variations and optimal control; optimization (49-XX) 6 Probability theory and stochastic processes (60-XX) 5 Operator theory (47-XX) 5 Computer science (68-XX) 4 Difference and functional equations (39-XX) 2 Mechanics of particles and systems (70-XX) 2 Operations research, mathematical programming (90-XX) 1 Number theory (11-XX) 1 Real functions (26-XX) 1 Statistics (62-XX) 1 Fluid mechanics (76-XX) 1 Geophysics (86-XX) Citations by Year