A counterexample to the "hot spots" conjecture

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We construct a counterexample to the ``hot spots'' conjecture; there exists a bounded connected planar domain (with two holes) such that the second eigenvalue of the Laplacian in that domain with Neumann boundary conditions is simple and such that the corresponding eigenfunction attains its strict maximum at an interior point of that domain.
9 pages, published version

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Probability, Analysis of PDEs, 35P99 (Primary) 60J65 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/76680

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9803030
 http://arxiv.org/abs/math/9803030
 Ann. of Math. (2) 149 (1999), no. 1, 309-317

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arXiv