On the strict monotonicity of the first eigenvalue of the p-Laplacian on annuli

Let B_1 be a ball in \mathbb{R}^N centred at the origin and let B_0 be a smaller ball compactly contained in B_1. For p\in (1, \infty ), using the shape derivative method, we show that the first eigenvalue of the p-Laplacian in annulus B_1\setminus \overline {B_0} strictly decreases as the inner bal...

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Bibliographic Details
Published in:Transactions of the American Mathematical Society 2018-10, Vol.370 (10), p.7181
Main Authors: T. V. Anoop, Vladimir Bobkov, Sarath Sasi
Format: Article
Language:English
Online Access:Get full text
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Summary:Let B_1 be a ball in \mathbb{R}^N centred at the origin and let B_0 be a smaller ball compactly contained in B_1. For p\in (1, \infty ), using the shape derivative method, we show that the first eigenvalue of the p-Laplacian in annulus B_1\setminus \overline {B_0} strictly decreases as the inner ball moves towards the boundary of the outer ball. The analogous results for the limit cases as p \to 1 and p \to \infty are also discussed. Using our main result, further we prove the nonradiality of the eigenfunctions associated with the points on the first nontrivial curve of the Fučik spectrum of the p-Laplacian on bounded radial domains.
ISSN:0002-9947
1088-6850
DOI:10.1090/tran/7241