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Transfinite diameter and the resultant

Laura DeMarco, Robert Rumely

math.CVarXiv:math/0601109

Abstract

We prove a formula for the Fekete-Leja transfinite diameter of the pullback of a set E in CN by a regular polynomial map F, expressing it in terms of the resultant of the leading part of F and the transfinite diameter of E. We also establish the nonarchimedean analogue of this formula. A key step in the proof is a formula for the transfinite diameter of the filled Julia set of F.

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