=+ (a) For the martingale Ya ,, in the proof of Lemma 2, show that E[Y ..
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=+
(a) For the martingale Ya ,, in the proof of Lemma 2, show that E[Y .. ] =1.
Operating formally at first, conclude that
(37.48)
E[e8W ,- 921/2]= 1.
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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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