Vol. 194, No. 2, 2000

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Commuting analytic self-maps of the ball

Barbara D. MacCluer

Vol. 194 (2000), No. 2, 413–426
Abstract

Under broad conditions, two analytic self-maps of the disk fixing 0 commute under composition precisely when they have the same Schroeder map, where the Schroeder map for an analytic φ : D D with φ(0) = 0 is the unique analytic function σ on D solving Schroeder’s equation σ φ = φ(0)σ and satisfying σ(0) = 1. For analytic self-maps of the ball in CN fixing 0 we may still seek analytic CNvalued solutions σ to Schroeder’s equation with σ(0) = I, but considerable complications for existence and uniqueness of σ may ensue. Nevertheless, we show that there are reasonably general hypotheses under which it will still be the case that two analytic self-maps of the ball fixing 0 commute if and only if they share a common Schroeder map σ with σ(0) = I.

Milestones
Received: 11 August 1998
Revised: 6 July 1999
Published: 1 June 2000
Authors
Barbara D. MacCluer
University of Virginia
Charlottesville, VA 22903-4137