区间上可换反同态的一个连通性结果
A connectedness result for commuting diffeomorphisms of the interval
摘要:
设D^r +[0,1],r ≥ 1,表示[0,1]的保向C^r同构群.证明了Z^2在D^r_+[0,1](r >= 2)中的任意两个表示都由Z^2在D ^1_+[0,1]中的表示的一条连续路径连接.我们从G. Szekeres和N. Kopell关于[0,1)中至少为C^2且只固定0的同构的C^1中心化子。
英文摘要:
Let D^r_+[0,1], r >= 1, denote the group of orientation-preserving C^r diffeomorphisms of [0,1]. We show that any two representations of Z^2 in D^r_+[0,1], r >= 2, are connected by a continuous path of representations of Z^2 in D^1_+[0,1]. We derive this result from the classical works by G. Szekeres and N. Kopell on the C^1 centralizers of the diffeomorphisms of [0,1) which are at least C^2 and fix only 0.
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