Abstract
An element g in a group G is called reversible if g−1=hgh−1 for some h∈G. We give a complete characterization of reversibility in the group PL(S) of piecewise linear homeomorphisms of the circle with finite number of break points. This work is the continuation of the study done by K. Ben Rejeb and H. Marzougui in (2019) [2], in particular we answer a question raised in it. This work is also a comparison and an extension to results of reversibility in the groups PL(R) and Homeo(S); some interesting examples are constructed here to answer questions that can be raised in this subject.
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