International Journal of Engineering Technology Science and Research IJETSR www.ijetsr.com ISSN 2394 – 3386 Volume 3, Issue 9 September 2016 Hopfield Model of a Neuron Dynamics under External Stimulus Dr. Vandana Gupta1 , Dr. S.K.Tiwari2, Raghvendra Singh3 1Professor & Head, Department of Mathematics, Govt. Kalidas Girls College, Ujjain(M.P.) 2Reader ,School of Studies in Mathematics, Vikram University, Ujjain(M.P.) 3 School of Studies in Mathematics, Vikram University, Ujjain(M.P.) Abstract: In this paper, we have presented Hopfield Model of a Neuron Dynamics under external stimulus. In this model we have taken a nonlinear integro-differential equation in the presence of external stimulus without any self -feedback. We have shown that the solution is bounded and not closed curve in Phase plane. Some conditions ensure the existence and uniqueness of equilibrium point that are derived. Keywords: Equilibrium point, Lyapunov functional, Boundary conditions, Bendixson’s criteria. 6 Dr. Vandana Gupta , Dr. S.K.Tiwari, Raghvendra Singh
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