Results 11 to 20 of about 151,410 (172)
Conjugate martingale transforms [PDF]
Summary: Characterizations of \(H_ 1\), BMO and VMO martingale spaces generated by bounded Vilenkin systems via conjugate martingale transforms are studied.
Weisz, Ferenc
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Martingale Transforms and Related Singular Integrals [PDF]
The operators obtained by taking conditional expectation of continuous time martingale transforms are studied, both on the circle T T
Rodrigo Bañuelos
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Rough semimartingales and $p$-variation estimates for martingale transforms [PDF]
We establish a new scale of $p$-variation estimates for martingale paraproducts, martingale transforms, and It\^o integrals, of relevance in rough paths theory, stochastic, and harmonic analysis.
Friz, Peter K. +2 more
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A sufficient condition for the boundedness of operator-weighted martingale transforms and Hilbert transform [PDF]
Let W be an operator weight taking values almost everywhere in the bounded positive invertible linear operators on a separable Hilbert space H. We show that if W and its inverse W−1 both satisfy a matrix reverse Holder property introduced in [2], then ...
Pott, S.
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Martingale Morrey-Campanato Spaces and Fractional Integrals
We introduce Morrey-Campanato spaces of martingales and give their basic properties. Our definition of martingale Morrey-Campanato spaces is different from martingale Lipschitz spaces introduced by Weisz, while Campanato spaces contain Lipschitz spaces ...
Eiichi Nakai, Gaku Sadasue
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Inequality for Burkholder’s martingale transform [PDF]
34 pages, 13 ...
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Projective system approach to the martingale characterization of the absence of arbitrage [PDF]
The equivalence between the absence of arbitrage and the existence of an equivalent martingale measure fails when an infinite number of trading dates is considered. By enlarging the set of states of nature and the probability measure through a projective
Balbás, Alejandro +2 more
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Rough semimartingales and $p$-variation estimates for martingale transforms [PDF]
We establish a new scale of p-variation estimates for martingale paraproducts, martingale transforms, and Itô integrals, of relevance in rough paths theory, stochastic, and harmonic analysis.
Friz, Peter K., Zorin-Kranich, Pavel
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On the Iterated Martingale Transforms [PDF]
application/pdfLet f=(fn,Fn)_{n≥0} be a martingale on some filtered complete probability space (Ω,F,P) with the usual conditions. We define the iterated martingale transforms I^{(m)}(f) = (In^≤{(m)},(Fn)) (m≥1) with respect to f, the discrete analogues ...
Yan, Litan
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On the Iterated Martingale Transforms.
Let \(f= (f_n, n\geq 0)\) be an \((P,\mathbb{F})\)-martingale on some filtered probability space \((\Omega,{\mathcal F},\mathbb{F}, P)\), \(I^{(m)}_n= \sum^n_{j=1} I^{(m-1)}_{j-1}(f_j- f_{j-1})\), \(I^{(m)}_0= 0\), \(n\geq 0\), \(m\geq 0\), where \(I^{(0)}_n\equiv 1\) and \(I^{(1)}_n= f_n\), \(n\geq 0\). It is proved that for \(1\leq p 0\).
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