If r is a nonzero constant, then HS r is just a well-known class of weights due to H. Helson and G. Szego (Ann. Mat. Pura Appl. 51 (1960), 107 138). Moreover we study the Koosis-type problem of two weights of S :, ; and get very simple necessary and sufficient conditions for such weights. 1997 Acad
โฆ LIBER โฆ
Some ratio inequalities for iterated stochastic integrals
โ Scribed by Litan Yan
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 193 KB
- Volume
- 259
- Category
- Article
- ISSN
- 0025-584X
No coin nor oath required. For personal study only.
โฆ Synopsis
Let X = (Xt, Ft) be a continuous local martingale with quadratic variation X and X0 = 0. Define iterated stochastic integrals In(X) = (In(t, X), Ft) , n โฅ 0, inductively by In(t, X
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