Results 11 to 20 of about 105,022 (283)

White noise based stochastic calculus associated with a class of Gaussian processes [PDF]

open access: yesOpuscula Mathematica, 2012
Using the white noise space setting, we define and study stochastic integrals with respect to a class of stationary increment Gaussian processes. We focus mainly on continuous functions with values in the Kondratiev space of stochastic distributions ...
Daniel Alpay, Haim Attia, David Levanony
doaj   +1 more source

A Numerical Scheme for Harmonic Stochastic Oscillators Based on Asymptotic Expansions

open access: yesMathematics, 2022
In this work, we provide a numerical method for discretizing linear stochastic oscillators with high constant frequencies driven by a nonlinear time-varying force and a random force.
Carmela Scalone
doaj   +1 more source

On generalized stochastic fractional integrals and related inequalities

open access: yesModern Stochastics: Theory and Applications, 2018
The generalized mean-square fractional integrals ${\mathcal{J}_{\rho ,\lambda ,u+;\omega }^{\sigma }}$ and ${\mathcal{J}_{\rho ,\lambda ,v-;\omega }^{\sigma }}$ of the stochastic process X are introduced.
Hüseyin Budak, Mehmet Zeki Sarikaya
doaj   +1 more source

Aumann Type Set-valued Lebesgue Integral and Representation Theorem [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2009
n this paper, we shall firstly illustrate why we should discuss the Aumann type set-valued Lebesgue integral of a set-valued stochastic process with respect to time t under the condition that the set-valued stochastic process takes nonempty compact ...
Jungang Li, Shoumei Li
doaj   +1 more source

Fractional variational problems and particle in cell gyrokinetic simulations with fuzzy logic approach for tokamaks [PDF]

open access: yesNuclear Technology and Radiation Protection, 2009
In earlier Rastovic's papers [1] and [2], the effort was given to analyze the stochastic control of tokamaks. In this paper, the deterministic control of tokamak turbulence is investigated via fractional variational calculus, particle in cell simulations,
Rastović Danilo
doaj   +1 more source

Iterated stochastic integrals and random velocity fluctuations

open access: yesInternational Journal of Mathematics for Industry, 2023
Iterated stochastic integrals of nonrandom integrands are constructed in the two-dimensional case. They are applied to the velocity fluctuations in a two-dimensional flow and mean kinetic energy of the velocity fluctuations is discussed.
Kouji Yamamuro
doaj   +1 more source

The non-Markovian stochastic Schrodinger equation for open systems [PDF]

open access: yes, 1997
We present the non-Markovian generalization of the widely used stochastic Schrodinger equation. Our result allows to describe open quantum systems in terms of stochastic state vectors rather than density operators, without approximation.
Caldeira   +21 more
core   +3 more sources

On extended stochastic integrals with respect to Lévy processes

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
Let $L$ be a Levy process on $[0,+\infty)$. In particular cases, when $L$ is a Wiener or Poisson process, any square integrable random variable can be decomposed in a series of repeated stochastic integrals from nonrandom functions with respect to $L ...
N.A. Kachanovsky
doaj   +1 more source

The Implementation of Milstein Scheme in Two-Dimensional SDEs Using the Fourier Method

open access: yesAbstract and Applied Analysis, 2018
Multiple stochastic integrals of higher multiplicity cannot always be expressed in terms of simpler stochastic integrals, especially when the Wiener process is multidimensional. In this paper we describe how the Fourier series expansion of Wiener process
Yousef Alnafisah
doaj   +1 more source

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