Surjectivity of certain word maps on PSL(2,C) and SL(2,C)

preprint2015arXivOpen access

Abstract

We show that an element w of a free group F on n generators defines a surjective word map of PSL(2,C)^n onto PSL(2,C) unless w belongs to the second derived subgroup of F. We also describe certain words maps that are surjective on SL(2,C) x SL(2,C). Here C is the field of complex numbers.

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