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Sans résuméEn hommage au professeurOstrowski  相似文献   

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Summary Let (, , P) be a complete probability space; let t0 be an increasing right-continuous family of -complete sub--fields of ; let be a sequence of semimartingales. Assume that for all positive t and for all bounded predictable processes H, the r.v.'s converge in probability to a limit J(t, H) when n tends to infinity. Then there exists a semimartingale X such that, for all t and H, J(t, H)= .  相似文献   

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Résumé SoitG un groupe moyennable connexe, locallement compact, à base dénombrable. Soit une mesure positive sur les boréliens deG. Nous étudions les fonctions boréliennes positivesh vérifiant: g G, . Sous de bonnes hypothèses sur , nous obtenons, pour ces fonctions, une représentation intégrale à l'aide d'exponentielles.
Summary LetG be a connected locally compact separable amenable group. Let be a positive measure on the Borel -field ofG. We study the positive Borel functionsh onG which satisfy: g G, . Under smooth assumptions on , we establish an integral representation of these functions in term of exponentials.
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We consider a fixed integer-valued random measure (also called a random point process). We represent any local martingale as the sum of a stochastic integral with respect to this random measure, and of a local martingale which does not jump on the support of the random measure.  相似文献   

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We give a generalisation of Hartogs theorem for separately holomorphic mappings into analytic spaces that have the Hartogs extension property.  相似文献   

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We prove an almost sure central limit theorem for some multidimensional stochastic algorithms used for the search of zeros of a function, and known to satisfy a central limit theorem.  相似文献   

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