Short geodesics and multiplicities of eigenvalues of hyperbolic surfaces

Fuente: arXiv
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Main Authors: He, Xiang, Wu, Yunhui, Zhang, Haohao
Format: Preprint
Published: 2025
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author He, Xiang
Wu, Yunhui
Zhang, Haohao
author_facet He, Xiang
Wu, Yunhui
Zhang, Haohao
contents In this paper, we obtain upper bounds on the multiplicity of Laplacian eigenvalues for closed hyperbolic surfaces in terms of the number of short closed geodesics and the genus $g$. For example, we show that if the number of short closed geodesics is sublinear in $g$, then the multiplicity of the first eigenvalue is also sublinear in $g$. This makes new progress on a conjecture by Colin de Verdière in the mid 1980s.
format Preprint
id arxiv_https___arxiv_org_abs_2507_10988
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Short geodesics and multiplicities of eigenvalues of hyperbolic surfaces
He, Xiang
Wu, Yunhui
Zhang, Haohao
Differential Geometry
Spectral Theory
In this paper, we obtain upper bounds on the multiplicity of Laplacian eigenvalues for closed hyperbolic surfaces in terms of the number of short closed geodesics and the genus $g$. For example, we show that if the number of short closed geodesics is sublinear in $g$, then the multiplicity of the first eigenvalue is also sublinear in $g$. This makes new progress on a conjecture by Colin de Verdière in the mid 1980s.
title Short geodesics and multiplicities of eigenvalues of hyperbolic surfaces
topic Differential Geometry
Spectral Theory
url https://arxiv.org/abs/2507.10988