Kac's lemma
id:
kac-s-lemma-290-7314460
title:
Kac's lemma
text:
In ergodic theory, Kac's lemma, demonstrated by mathematician Mark Kac in 1947, is a lemma stating that in a measure space the orbit of almost all the points contained in a set A of such space, whose measure is μ , return to A within an average time inversely proportional to μ . The lemma extends what is stated by Poincaré recurrence theorem, in which it is shown that the points return in A infinite times.
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Kac%27s_lemma
date created:
date modified:
2023-09-26T22:35:13Z
main entity:
{"identifier":"Q97032821","url":"https://www.wikidata.org/entity/Q97032821"}
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13
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13