知识与财富的链接
对于一类非单调连续映射,即逐段单调函数,当它存在特征区间时,结果是丰富的.本文讨论的是相反的情形,也就是不存在特征区间的时候.本文部分回答了文章[Ann. Polon. Math., 1997, 65(2): 119--128]中的公开问题一.
Many results are given for iterative roots of PM functions, a class of non-monotonic continuous functions, when the characteristic interval exists. In this paper we discuss iterative roots in the opposite case and partly answer the Open Problem 1 proposed in [Ann. Polon. Math., 1997, 65(2): 119--128].
