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Further, the maximum number of limit cycles bifurcating from the center of the unperturbed system is at least [Formula: see text] if the origin is the unique singular point under perturbations. <\/jats:p>","DOI":"10.1142\/s0218127421502187","type":"journal-article","created":{"date-parts":[[2021,11,23]],"date-time":"2021-11-23T13:10:48Z","timestamp":1637673048000},"source":"Crossref","is-referenced-by-count":0,"title":["Limit Cycle Bifurcations in a Class of Piecewise Smooth Polynomial Systems"],"prefix":"10.1142","volume":"31","author":[{"given":"Meilan","family":"Cai","sequence":"first","affiliation":[{"name":"Department of Mathematics, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. 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