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As a consequence, mean Li\u2013Yorke chaos is not conjugacy invariant for continuous self-maps acting on complete metric spaces. Moreover, the existence of invariant scrambled sets (with respect to certain Furstenberg families) of a class of weighted shift operators is proved. <\/jats:p>","DOI":"10.1142\/s0218127421502229","type":"journal-article","created":{"date-parts":[[2021,12,7]],"date-time":"2021-12-07T11:30:05Z","timestamp":1638876605000},"source":"Crossref","is-referenced-by-count":3,"title":["Investigating Distributional Chaos for Operators on Fr\u00e9chet Spaces"],"prefix":"10.1142","volume":"31","author":[{"given":"Zongbin","family":"Yin","sequence":"first","affiliation":[{"name":"School of Mathematics and Systems Science, Guangdong Polytechnic Normal University, Guangzhou 510665, P. R. 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