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Arithmeticity and commensurability of links in thickened surfaces

2024/08/31 by David Futer, Futer, David, Rose Kaplan-Kelly +1
Computer Science · Engineering · #57K10 #57K32 #Advanced Numerical Analysis Techniques #Contact Mechanics and Variational Inequalities #FOS: Mathematics #Geometric Topology (math.GT) #Manufacturing Process and Optimization

paper · pdf · doi:10.48550/arxiv.2409.00490

openalex publication_date 2024/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The family of right-angled tiling links consists of links built from regular 4-valent tilings of constant-curvature surfaces that contain one or two types of tiles. The complements of these links admit complete hyperbolic structures and contain two totally geodesic checkerboard surfaces that meet at right angles. In this paper, we give a complete characterization of which right-angled tiling links are arithmetic, and which are pairwise commensurable. The arithmeticity classification exploits symmetry arguments and the combinatorial geometry of Coxeter polyhedra. The commensurability classification relies on identifying the canonical decompositions of the link complements, in addition to number-theoretic data from invariant trace fields.

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