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Kolmogorov continuity theorem : ウィキペディア英語版 | Kolmogorov continuity theorem In mathematics, the Kolmogorov continuity theorem is a theorem that guarantees that a stochastic process that satisfies certain constraints on the moments of its increments will be continuous (or, more precisely, have a "continuous version"). It is credited to the Soviet mathematician Andrey Nikolaevich Kolmogorov. ==Statement of the theorem==
Let be a stochastic process, and suppose that for all times , there exist positive constants such that : for all . Then there exists a modification of that is a continuous process, i.e. a process such that * is sample continuous; * for every time , Furthermore, the paths of are almost surely -Hölder continuous for every .
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