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arxiv: math/0510258 · v1 · submitted 2005-10-12 · 🧮 math.PR

Hypercontractivity for perturbed diffusion semigroups

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keywords inequalitylog-sobolevmeasuresomeconditionsdiffusionexamplesexplicit
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$\mu$ being a nonnegative measure satisfying some log-Sobolev inequality, we give conditions on F for the measure $\nu=e^{-2F} \mu$ to also satisfy some log-Sobolev inequality. Explicit examples are studied.

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