Infinite circle packings on surfaces with conical singularities
Abstract
We show that given an infinite triangulation of a surface with punctures (i.e., with no vertices at the punctures) and a set of target cone angles smaller than at the punctures that satisfy a Gauss-Bonnet inequality, there exists a hyperbolic metric that has the prescribed angles and supports a circle packing in the combinatorics of . Moreover, if is very symmetric, then we can identify the underlying Riemann surface and show that it does not depend on the angles. In particular, this provides examples of a triangulation and a conformal class such that there are infinitely many conical hyperbolic structures in the conformal class with a circle packing in the combinatorics of . This is in sharp contrast with a conjecture of Kojima-Mizushima-Tan in the closed case.
Cite
@article{arxiv.2305.03505,
title = {Infinite circle packings on surfaces with conical singularities},
author = {Philip L. Bowers and Lorenzo Ruffoni},
journal= {arXiv preprint arXiv:2305.03505},
year = {2024}
}
Comments
20 pages, 4 figures, comments welcome. v2: revised final version