{ "id": "2209.03443", "version": "v1", "published": "2022-09-07T20:04:31.000Z", "updated": "2022-09-07T20:04:31.000Z", "title": "Topological-numerical analysis of a two-dimensional discrete neuron model", "authors": [ "Paweł Pilarczyk", "Justyna Signerska-Rynkowska", "Grzegorz Graff" ], "categories": [ "math.DS" ], "abstract": "We conduct computer-assisted analysis of the two-dimensional model of a neuron introduced by Chialvo in 1995 (Chaos, Solitons & Fractals 5, 461-479). We apply the method for rigorous analysis of global dynamics based on a set-oriented topological approach, introduced by Arai et al. in 2009 (SIAM J. Appl. Dyn. Syst. 8, 757-789) and improved and expanded afterwards. Additionally, we introduce a new algorithm to analyze the return times inside a chain recurrent set. Based on this analysis, together with the information on the size of the chain recurrent set, we develop a new method that allows one to determine subsets of parameters for which chaotic dynamics may appear. This approach can be applied to a variety of dynamical systems, and we discuss some of its practical aspects. The data and the software described in the paper are available at http://www.pawelpilarczyk.com/neuron/.", "revisions": [ { "version": "v1", "updated": "2022-09-07T20:04:31.000Z" } ], "analyses": { "subjects": [ "37B35", "37B30", "37M99", "37N25", "92-08" ], "keywords": [ "two-dimensional discrete neuron model", "topological-numerical analysis", "chain recurrent set", "return times inside", "global dynamics" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }