Abstract
Let F and G be finite Blaschke products of degree greater than one. Let p be the Wolff point of F such that either or . We prove that F commutes with G if and only if for some positive integers i,j. Also, if F and G have the same degree and commute, we prove that either F = G or G = ωF, where ω is a root of the unity.
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More From: Complex Variables, Theory and Application: An International Journal
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