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Resumen de First Variations of the Best Sobolev Trace Constant with Respect to the Domain

Julio Daniel Rossi Árbol académico

  • In this paper we study the best constant of the Sobolev trace embedding H1(Omega) \to L2 (partial Omega), where Omega is a bounded smooth domain in {mathbb R}N. We find a formula for the first variation of the best constant with respect to the domain. As a consequence, we prove that the ball is a critical domain when we consider deformations that preserve volume.


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