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The method is illustrated with the H\u00e9non map and two other examples. Since it can be implemented with a computer software, it becomes easy to study the existence of chaos and topological entropy by virtue of topological horseshoe. <\/jats:p>","DOI":"10.1142\/s0218127410025545","type":"journal-article","created":{"date-parts":[[2010,4,16]],"date-time":"2010-04-16T04:05:38Z","timestamp":1271390738000},"page":"467-478","source":"Crossref","is-referenced-by-count":60,"title":["A SIMPLE METHOD FOR FINDING TOPOLOGICAL HORSESHOES"],"prefix":"10.1142","volume":"20","author":[{"given":"QINGDU","family":"LI","sequence":"first","affiliation":[{"name":"Center for Nonlinear Science, Institute for Nonlinear Systems, Chongqing University of Posts and Telecomm., Chongqing 400065, P. R. China"}]},{"given":"XIAO-SONG","family":"YANG","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Huazhong University of Science and Technology, Wuhan 430074, P. R. 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