=+. (a) Show that {X) is a martingale with respect to (5} if and only if, for
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=+.
(a) Show that {X„) is a martingale with respect to (5"} if and only if, for all n and all stopping times + such that +
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Related Book For
Probability And Measure Wiley Series In Probability And Mathematical Statistics
ISBN: 9788126517718
3rd Edition
Authors: Patrick Billingsley
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