Flexibility of eigenvalues for graph Laplacians arising from genus 3 surfaces

Fuente: arXiv
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Main Authors: Erchenko, Alena, Jakobson, Dmitry, Tsypin, Allison
Format: Preprint
Published: 2026
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author Erchenko, Alena
Jakobson, Dmitry
Tsypin, Allison
author_facet Erchenko, Alena
Jakobson, Dmitry
Tsypin, Allison
contents It is known that the small eigenvalues of the Laplacian of a Riemann surface close to the boundary of the modular space can be well approximated by the eigenvalues of the discrete Laplacian on a certain graph coming from the pair of pants decomposition of the surface. In this paper, we provide a complete description of the sets of eigenvalues of the weighted graph Laplacian for all graphs on four vertices that correspond to a valid pair of pants decomposition of a surface of genus 3.
format Preprint
id arxiv_https___arxiv_org_abs_2604_26308
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Flexibility of eigenvalues for graph Laplacians arising from genus 3 surfaces
Erchenko, Alena
Jakobson, Dmitry
Tsypin, Allison
Spectral Theory
Differential Geometry
Primary 05C50, 58J50, Secondary 05C22, 05C90, 58C40, 52A55
It is known that the small eigenvalues of the Laplacian of a Riemann surface close to the boundary of the modular space can be well approximated by the eigenvalues of the discrete Laplacian on a certain graph coming from the pair of pants decomposition of the surface. In this paper, we provide a complete description of the sets of eigenvalues of the weighted graph Laplacian for all graphs on four vertices that correspond to a valid pair of pants decomposition of a surface of genus 3.
title Flexibility of eigenvalues for graph Laplacians arising from genus 3 surfaces
topic Spectral Theory
Differential Geometry
Primary 05C50, 58J50, Secondary 05C22, 05C90, 58C40, 52A55
url https://arxiv.org/abs/2604.26308