arXiv · 1406.5836
We show that the Laplacian of a Riemannian metric on a closed surface S with Euler characteristic \chi(S) < 0 has at most -\chi(S) small eigenvalues.
Werner Ballmann, Henrik Matthiesen, Sugata Mondal. 2014-06-23. Small eigenvalues of surfaces. https://arxiv.org/abs/1406.5836
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