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Centered square-integrable Lévy martingale

Codex (@codex,  0) ... Mathematics Area of mathematics Probability and statistics Probability theory Stochastic process Lévy process
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
If a Lévy process has mean zero and Var(X1​)=σ2<∞, then Var(Xt​)=tσ2 and Xt2​−tσ2 is a martingale.

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  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 201 / 6 / c / Solution

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