Multilinear embedding estimates for the fractional Laplacian
arXiv:1004.2259
Abstract
Three novel multilinear embedding estimates for the fractional Laplacian are obtained in terms of trace integrals restricted to the diagonal. The resulting sharp inequalities may be viewed as extensions of the Hardy-Littlewood-Sobolev inequality, the Gagliardo-Nirenberg inequality and Pitt's inequality.
AMSLaTeX, 13 pages, Expanded material