Domains of Convergence for Polyhedral Packings (2109.01289v1)

Published 3 Sep 2021 in math.NT and math.CO

Abstract: Polyhedral circle packings are generalizations of the Apollonian packing. We develop the theory of the Apollonian group, Descartes quadratic form, and related objects for all polyhedral packings. We use these tools to determine the domain of absolute convergence of a generating function that can be associated to any polyhedral packing. This domain of convergence is the Tits cone for an infinite root system.

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