ON TORSIONAL RIGIDITY AND PRINCIPAL FREQUENCIES: AN INVITATION TO THE KOHLER-JOBIN REARRANGEMENT TECHNIQUE

被引:34
作者
Brasco, Lorenzo [1 ]
机构
[1] Aix Marseille Univ, Lab Anal, 39 Rue Frederic Joliot Curie, F-13453 Marseille 13, France
关键词
Torsional rigidity; nonlinear eigenvalue problems; spherical rearrangements; CONVEX SYMMETRIZATION; EXTREMAL-FUNCTIONS; REGULARITY;
D O I
10.1051/cocv/2013065
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We generalize to the p-Laplacian. Delta(p) a spectral inequality proved by M.-T. Kohler-Jobin. As a particular case of such a generalization, we obtain a sharp lower bound on the first Dirichlet eigenvalue of Delta(p) of a set in terms of its p-torsional rigidity. The result is valid in every space dimension, for every 1 < p < infinity and for every open set with finite measure. Moreover, it holds by replacing the first eigenvalue with more general optimal Poincare-Sobolev constants. The method of proof is based on a generalization of the rearrangement technique introduced by Kohler-Jobin.
引用
收藏
页码:315 / 338
页数:24
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