Fractional Hardy-Sobolev-Maz'ya inequality for domains
  We prove a fractional version of the Hardy--Sobolev--Maz'ya inequality for arbitrary domains and $L^p$ norms with $p\geq 2$. This inequality combines the fractional Sobolev and the fractional Hardy inequality into a single inequality, while keeping the sharp constant in the Hardy inequality. 
Bart{\l}omiej Dyda, Rupert L. Frank
math.FA