Results 11 to 20 of about 151,410 (172)

Conjugate martingale transforms [PDF]

open access: yesStudia Mathematica, 1992
Summary: Characterizations of \(H_ 1\), BMO and VMO martingale spaces generated by bounded Vilenkin systems via conjugate martingale transforms are studied.
Weisz, Ferenc
openaire   +3 more sources

Martingale Transforms and Related Singular Integrals [PDF]

open access: yesTransactions of the American Mathematical Society, 1986
The operators obtained by taking conditional expectation of continuous time martingale transforms are studied, both on the circle T T
Rodrigo Bañuelos
openaire   +2 more sources

Rough semimartingales and $p$-variation estimates for martingale transforms [PDF]

open access: yes, 2022
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
core   +1 more source

A sufficient condition for the boundedness of operator-weighted martingale transforms and Hilbert transform [PDF]

open access: yes, 2007
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.
core   +1 more source

Martingale Morrey-Campanato Spaces and Fractional Integrals

open access: yesJournal of Function Spaces and Applications, 2012
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
doaj   +1 more source

Projective system approach to the martingale characterization of the absence of arbitrage [PDF]

open access: yes, 2001
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
core   +2 more sources

Rough semimartingales and $p$-variation estimates for martingale transforms [PDF]

open access: yes, 2020
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
core   +1 more source

On the Iterated Martingale Transforms [PDF]

open access: yes, 2010
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
core   +1 more source

On the Iterated Martingale Transforms.

open access: yesInterdisciplinary Information Sciences, 2000
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 \(1\leq p 0\).
openaire   +2 more sources

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