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On the first eigenvalue of a fourth order Steklov problem

Research output: Contribution to journalArticlepeer-review

Abstract

We prove some results about the first Steklov eigenvalue d 1 of the biharmonic operator in bounded domains. Firstly, we show that Fichera's principle of duality (Fichera in Atti Accad Naz Lincei 19:411-418, 1955) may be extended to a wide class of nonsmooth domains. Next, we study the optimization of d 1 for varying domains: we disprove a long-standing conjecture, we show some new and unexpected features and we suggest some challenging problems. Finally, we prove several properties of the ball.

Original languageEnglish
Pages (from-to)103-131
Number of pages29
JournalCalculus of Variations and Partial Differential Equations
Volume35
Issue number1
DOIs
Publication statusPublished - May 2009
Externally publishedYes

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