Sharp Trace Hardy-Sobolev-Maz'ya Inequalities and the Fractional Laplacian

Details Sharp Trace Hardy-Sobolev-Maz'ya Inequalities and the Fractional Laplacian Sharp Trace Hardy-Sobolev-Maz'ya Inequalities and the Fractional Laplacian

2011-10-17

arxiv.org/abs/1110.3604v1

Mathematics

Analysis of PDEs

42 pages

Scientific paper

In this work we establish trace Hardy and trace Hardy-Sobolev-Maz'ya inequalities with best Hardy constants, for domains satisfying suitable geometric assumptions such as mean convexity or convexity. We then use them to produce fractional Hardy-Sobolev-Maz'ya inequalities with best Hardy constants for various fractional Laplacians. In the case where the domain is the half space our results cover the full range of the exponent $s \in (0,1)$ of the fractional Laplacians. We answer in particular an open problem raised by Frank and Seiringer \cite{FS}.

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