Comparison between the first Steklov eigenvalue and algebraic connectivity on trees

Fuente: arXiv
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Main Authors: Lin, Huiqiu, Zhao, Da
Format: Preprint
Published: 2025
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author Lin, Huiqiu
Zhao, Da
author_facet Lin, Huiqiu
Zhao, Da
contents Trees can be regarded as discrete analogue of Hadamard manifolds, namely simply-connected Riemannian manifolds of non-positive sectional curvature. In this paper, we compare the first (non-trivial) Steklov eigenvalue and algebraic connectivity of trees with prescribed number of boundary vertices and matching number. It is particularly noteworthy that while the extremal trees coincide for both operators, their corresponding eigenvalues differ significantly.
format Preprint
id arxiv_https___arxiv_org_abs_2508_13466
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Comparison between the first Steklov eigenvalue and algebraic connectivity on trees
Lin, Huiqiu
Zhao, Da
Combinatorics
05C05, 47A75, 49J40, 49R05
Trees can be regarded as discrete analogue of Hadamard manifolds, namely simply-connected Riemannian manifolds of non-positive sectional curvature. In this paper, we compare the first (non-trivial) Steklov eigenvalue and algebraic connectivity of trees with prescribed number of boundary vertices and matching number. It is particularly noteworthy that while the extremal trees coincide for both operators, their corresponding eigenvalues differ significantly.
title Comparison between the first Steklov eigenvalue and algebraic connectivity on trees
topic Combinatorics
05C05, 47A75, 49J40, 49R05
url https://arxiv.org/abs/2508.13466