Year: 2024
Type: article
Abstract: . In this paper we study optimization problems for Neumann eigenvalues [Formula: see text] among convex domains with a constraint on the diameter or the perimeter. We work mainly in the plane, though some results are stated in higher dimension. We study the existence of an optimal domain in all considered cases. We also consider the case of the unit disk, giving values of the index [Formula: see text] for which it can or cannot be extremal. We give some numerical examples for small values of [Formula: see text] that lead us to state some conjectures.
DOI: 10.1137/24m1641099
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4404079350
