submartingale

English

Etymology

From sub- +‎ martingale.

Noun

submartingale (plural submartingales)

  1. (mathematics) A stochastic process for which the conditional expectation of future values given the sequence of all prior values is superior or equal to its current value.
    If a gambler repeatedly plays a game with positive expectation, his payoff over time is a submartingale.

Usage notes

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