{ "id": "2002.02586", "version": "v1", "published": "2020-02-07T02:01:15.000Z", "updated": "2020-02-07T02:01:15.000Z", "title": "Traveling wave solutions for a class of discrete diffusive SIR epidemic model", "authors": [ "Ran Zhang", "Jinliang Wang", "Shengqiang Liu" ], "categories": [ "math.DS" ], "abstract": "This paper is concerned with the conditions of existence and nonexistence of traveling wave solutions (TWS) for a class of discrete diffusive epidemic models. We find that the existence of TWS is determined by the so-called basic reproduction number and the critical wave speed: When the basic reproduction number R0 greater than 1, there exists a critical wave speed c* > 0, such that for each c >= c * the system admits a nontrivial TWS and for c < c* there exists no nontrivial TWS for the system. In addition, the boundary asymptotic behaviour of TWS is obtained by constructing a suitable Lyapunov functional and employing Lebesgue dominated convergence theorem. Finally, we apply our results to two discrete diffusive epidemic models to verify the existence and nonexistence of TWS.", "revisions": [ { "version": "v1", "updated": "2020-02-07T02:01:15.000Z" } ], "analyses": { "subjects": [ "35C07", "35K57", "92D30" ], "keywords": [ "discrete diffusive sir epidemic model", "traveling wave solutions", "reproduction number r0 greater", "lebesgue dominated convergence theorem", "discrete diffusive epidemic models" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }