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Author: search.filters.author.Cho, Y.J.Subject: search.filters.subject.Iterative root

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    Iterative Roots of Non-PM Functions and Denseness
    (Birkhauser Verlag AG, 2018) Cho, Y.J.; Suresh Kumar, S.K.; Murugan, M.
    The characteristic interval plays a vital role on the existence of iterative roots of PM functions with height less than or equal to one. In this paper, we define the characteristic interval for continuous functions and prove theorems on extension and nonexistence of iterative roots for a class of continuous non-PM functions on a closed and bounded interval I. Also, we prove that a class of continuous non-PM functions, which do not possess any iterative roots, is dense in C(I, I). © 2018, Springer International Publishing AG, part of Springer Nature.