摘要：There exists a classification of compact spaces according to
the existence of a minimal homeomorphism and a minimal non-invertible
map. So far, the class (1,0) was represented by only one example - the circle and it was an open question whether this example is indeed unique.

Lately, with Lubo Snoha and Dariusz Tywoniuk we have constructed a
different example, solving the problem (negatively).

报告人简介：Tomasz Downarowicz教授，著名的动力系统专家，整数群作用动力系统符号扩充理论的主要奠基人。先后有60多篇论文接受发表于国际期刊Invent. Math.、Ergod. Th. & Dynam. Sys.、Israel J. Math.、Colloq. Math.、J. d’Analyse等；撰写了专著《Entropy in Dynamical Systems》（New Mathematical Monographs 18，剑桥大学出版社出版）；为国际期刊Colloq. Math.编辑。