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Critical Hardy--Sobolev Inequalities

S. Filippas, V. Maz'ya, A. Tertikas

math.AParXiv:math/0611484

Abstract

We consider Hardy inequalities in I Rn, n ≥ 3, with best constant that involve either distance to the boundary or distance to a surface of co-dimension k<n, and we show that they can still be improved by adding a multiple of a whole range of critical norms that at the extreme case become precisely the critical Sobolev norm.

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