Results 11 to 20 of about 4,276 (212)

Convergence Rates in the Law of Large Numbers for Arrays of Banach Valued Martingale Differences

open access: yesAbstract and Applied Analysis, 2013
We study the convergence rates in the law of large numbers for arrays of Banach valued martingale differences. Under a simple moment condition, we show sufficient conditions about the complete convergence for arrays of Banach valued martingale ...
Shunli Hao
doaj   +1 more source

Exact bounds for tail probabilities of martingales with bounded differences

open access: yesLietuvos Matematikos Rinkinys, 2009
We consider random walks, say Wn = {0, M1, . . ., Mn} of length n starting at 0 and based on a martingale sequence Mk = X1 + ··· + Xk with differences Xm. Assuming |Xk| \leq 1 we solve the isoperimetric problem Bn(x) = supP\{Wn visits an interval [x,∞
Dainius Dzindzalieta
doaj   +1 more source

Atomic decompositions of Lorentz martingale spaces and applications

open access: yesJournal of Function Spaces and Applications, 2009
In the paper we present three atomic decomposition theorems of Lorentz martingale spaces. With the help of atomic decomposition we obtain a sufficient condition for sublinear operator defined on Lorentz martingale spaces to be bounded.
Jiao Yong, Peng Lihua, Liu Peide
doaj   +1 more source

On Martingales in the Limit

open access: yesThe Annals of Probability, 1980
The purpose of this note is to show that the set of $L^1$-bounded "martingales in the limit", unlike the set of $L^1$-bounded "amarts", is not a vector lattice.
Bellow, A., Dvoretzky, A.
openaire   +3 more sources

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

Stochastic models of just-in-time systems and windows of vulnerability in terms of the processes of birth and death

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
The paper proposes a method for constructing models based on the analysis of birth and death processes with linear growth in semimartingale terms.
Aleksander Aleksandrovich Butov   +1 more
doaj   +1 more source

Martingales, nonlinearity, and chaos [PDF]

open access: yesJournal of Economic Dynamics and Control, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
William Barnett, Apostolos Serletis
openaire   +2 more sources

A Generalized Model for Pricing Financial Derivatives Consistent with Efficient Markets Hypothesis—A Refinement of the Black-Scholes Model

open access: yesRisks, 2023
This research article provides criticism and arguments why the canonical framework for derivatives pricing is incomplete and why the delta-hedging approach is not appropriate.
Jussi Lindgren
doaj   +1 more source

A Simultaneous Estimation of the Baseline Intensity and Parameters for Modulated Renewal Processes

open access: yesAxioms, 2022
This paper proposes a semiparametric solution to estimate the intensity (hazard) function of modulated renewal processes: a nonparametric estimate for the baseline intensity function together with a parametric estimate of the model parameters of the ...
Jiancang Zhuang, Hai-Yen Siew
doaj   +1 more source

Assessing the role of spatial externalities in the survival of Italian innovative startups

open access: yesRegional Science Policy &Practice, EarlyView., 2023
Abstract The paper provides novel empirical evidence about the effects of spatial externalities on the survival of innovative startups in Italy. Using geocoded firm‐level data, we build micro‐geographic measures of specialization and diversity that are robust to the modifiable areal unit problem.
Diego Giuliani   +4 more
wiley   +1 more source

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