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Lois de sortie et semi-groupes basiques

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Abstract

Let ℙ=(P t)t<0 be a semigroup of kernel and letm be an excessive reference measure for ℙ. In this work we prove that ℙ ism-basic if and only if everym.a.e. finite purely excessive function is represented by a unique exit law for ℙ. In this case we deduce some applications about natural densities, energie functionnal and invariant functions for the time-space semigroup of ℙ.

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Hmissi, M. Lois de sortie et semi-groupes basiques. Manuscripta Math 75, 293–302 (1992). https://doi.org/10.1007/BF02567086

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  • DOI: https://doi.org/10.1007/BF02567086

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