# Supermartingale

Definition Let (il, F, P) be a probability triple and {Tt} be a filtration on F. A stochastic process X is an {Ft} supermartingale if: (i) X is adapted to \Tt } ; (ii) E[\Xt \]. Posts about Supermartingale written by George Lowther. In probability theory, a martingale is a sequence of random variables (i.e., a stochastic process) .. Every martingale is also a submartingale and a supermartingale. Conversely, any stochastic process that is both a submartingale and a  ‎ History · ‎ Definitions · ‎ Examples of martingales · ‎ Submartingales. The general form 1 can be reduced to this special case, as I describe. By definition of a supermartingale we have: If he keeps on doubling the stake after each loss in this way, then he is always gambling hattrick 2 bundesliga heute more dollar than the total losses so far. The first integral in 2 is not a proper martingale, and has strictly negative expectation at all positive times. Das Optional Stopping Theorem und das Optional Sampling Theorem kombinieren Stoppzeiten mit Martingalen und beschäftigen sich mit den Eigenschaften und Erwartungswerten der gestoppten Prozesse.

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How to Pronounce Supermartingale