摘要
The purpose of this note is to answer a question of J. A. Toledo ([1, Question 4.14]): Does there exist a chainable continuum, other than the pseudo-arc, admitting arbitrarily small homeomorphisms of period n for some n】2? We observe surprisedly that the wedge M of pseudo-arc and unit close interval is such an example. We prove.
基金
Project supported by the National Natural Science Foundation of China