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arxiv: math/0212083 · v3 · submitted 2002-12-05 · 🧮 math.AP

Remarks on a Sobolev-Hardy inequality

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keywords inequalityoptimalarisingastrophysicscomputeconstantelementaryelliptic
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We compute the optimal constant for a generalized Hardy-Sobolev inequality, and using the product of two symmetrizations we present an elementary proof of the symmetries of some optimal functions. This inequality was motivated by a nonlinear elliptic equation arising in astrophysics.

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