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A note on hot-spots free subregions of convex domains
Stockholm University, Faculty of Science, Department of Mathematics.ORCID iD: 0000-0003-1354-5387
Number of Authors: 12026 (English)In: Complex Analysis and Operator Theory, ISSN 1661-8254, E-ISSN 1661-8262, Vol. 20, no 2, article id 57Article in journal (Refereed) Published
Abstract [en]

The second eigenfunction of the Neumann Laplacian on convex, planar domains is considered. Inspired by the famous hot spots conjecture and a related result of Steinerberger, we show that potential critical points of this eigenfunction (and, in particular, interior “hot spots”) cannot be located “near the center” of the domain. The region in which critical points are excluded is described explicitly.

Place, publisher, year, edition, pages
2026. Vol. 20, no 2, article id 57
Keywords [en]
Critical points, Eigenfunctions, Hot spots, Laplacian
National Category
Mathematical Analysis
Identifiers
URN: urn:nbn:se:su:diva-253233DOI: 10.1007/s11785-026-01910-yISI: 001685888000001Scopus ID: 2-s2.0-105029845209OAI: oai:DiVA.org:su-253233DiVA, id: diva2:2045354
Available from: 2026-03-12 Created: 2026-03-12 Last updated: 2026-03-12Bibliographically approved

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Rohleder, Jonathan

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