English

On largeness and multiplicity of the first eigenvalue of hyperbolic surfaces

Differential Geometry 2017-03-08 v2

Abstract

We apply topological methods to study the smallest non-zero number λ1\lambda_1 in the spectrum of the Laplacian on finite area hyperbolic surfaces. For closed hyperbolic surfaces of genus two we show that the set {SM2:λ1(S)>1/4}\{S \in {\mathcal{M}_2}: {\lambda_1}(S) > 1/4 \} is unbounded and disconnects the moduli space M2{\mathcal{M}_2}.

Keywords

Cite

@article{arxiv.1406.1080,
  title  = {On largeness and multiplicity of the first eigenvalue of hyperbolic surfaces},
  author = {Sugata Mondal},
  journal= {arXiv preprint arXiv:1406.1080},
  year   = {2017}
}

Comments

16 pages, 2 figures