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New sharp Gagliardo-Nirenberg-Sobolev inequalities and an improved Borell-Brascamp-Lieb inequality

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Arnaud Guillin
University Clermont-Auvergne
Wed, 2017-09-27 09:30 - 10:30
MPIM Lecture Hall

We propose a new Borell-Brascamp-Lieb inequality which leads to novel sharp Euclidean inequalities such as Gagliardo-Nirenberg-Sobolev inequalities in $\R^n$ and in the half-space $\R^n_+$. This gives a new bridge between the geometric pont of view of the Brunn-Minkowski inequality and the functional point of view of the Sobolev type inequalities. In this way we unify, simplify and generalize results by S. Bobkov - M. Ledoux, M. del Pino - J. Dolbeault and B. Nazaret.

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