Abstract
In various one-dimensional functional inequalities, the optimal constants can be found by considering only monotone functions. We study the discrete and continuous settings (and their relationships); we are interested in Poincarè or logarithmic Sobolev inequalities, and several variants obtained by modifying entropy and energy terms.
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Laurent, M. (2009). Monotonicity of the extremal functions for one-dimensional inequalities of logarithmic Sobolev type. In: Donati-Martin, C., Émery, M., Rouault, A., Stricker, C. (eds) Séminaire de Probabilités XLII. Lecture Notes in Mathematics(), vol 1979. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01763-6_2
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DOI: https://doi.org/10.1007/978-3-642-01763-6_2
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