Supermartingale

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A stochastic process for which the conditional expectation of future values given the sequence of all prior values is bounded above by the current value.

    "If a gambler repeatedly plays a game with negative expectation, his payoff over time is a supermartingale."

Example

More examples

"If a gambler repeatedly plays a game with negative expectation, his payoff over time is a supermartingale."

Etymology

From super- + martingale.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.