Results 21 to 30 of about 2,761 (145)

An uniqueness result for a class of wiener-space valued stochastic differential equations [PDF]

open access: yes, 1999
Mathematics Subject Classifications (1991): 58D25; 60H07; 60H10; 60J60.We prove a generalization of Bismut-Itô-Kunita formula to infinite dimensions and derive an uniqueness result for Wiener space valued processes which holds for a special class of ...
Oliveira, Maria João
core   +1 more source

Construction of special soliton solutions to the stochastic Riccati equation

open access: yesOpen Mathematics, 2022
A scheme for the analytical stochastization of ordinary differential equations (ODEs) is presented in this article. Using Itô calculus, an ODE is transformed into a stochastic differential equation (SDE) in such a way that the analytical solutions of the
Navickas Zenonas   +4 more
doaj   +1 more source

Fractional Fokker-Planck-Kolmogorov type Equations and their Associated Stochastic Differential Equations [PDF]

open access: yes, 2011
MSC 2010: 26A33, 35R11, 35R60, 35Q84, 60H10 Dedicated to 80-th anniversary of Professor Rudolf GorenfloThere is a well-known relationship between the Itô stochastic differential equations (SDEs) and the associated partial differential equations called ...
Hahn, Marjorie, Umarov, Sabir
core   +1 more source

A Stochastic Gronwall Lemma [PDF]

open access: yes, 2013
We prove a stochastic Gronwall lemma of the following type: if $Z$ is an adapted nonnegative continuous process which satisfies a linear integral inequality with an added continuous local martingale $M$ and a process $H$ on the right hand side, then for ...
Scheutzow, Michael
core   +1 more source

Mean square exponential stability of stochastic function differential equations in the G-framework

open access: yesOpen Mathematics, 2023
This research focuses on the stochastic functional differential equations driven by G-Brownian motion (G-SFDEs) with infinite delay. It is proved that the trivial solution of a G-SFDE with infinite delay is exponentially stable in mean square. An example
Li Guangjie, Hu Zhipei
doaj   +1 more source

Averaging principle for two-time-scale stochastic differential equations with correlated noise

open access: yesOpen Mathematics, 2022
This article is devoted to studying the averaging principle for two-time-scale stochastic differential equations with correlated noise. By the technique of multiscale expansion of the solution to the backward Kolmogorov equation and consequent ...
Jiang Tao, Liu Yancai
doaj   +1 more source

A Model for Liver Homeostasis Using Modified Mean‐Reverting Ornstein–Uhlenbeck Process

open access: yesComputational and Mathematical Methods in Medicine, Volume 11, Issue 1, Page 27-47, 2010., 2010
Short of a liver biopsy, hepatic disease and drug‐induced liver injury are diagnosed and classified from clinical findings, especially laboratory results. It was hypothesized that a healthy hepatic dynamic equilibrium might be modelled by an Ornstein–Uhlenbeck (OU) stochastic process, which might lead to more sensitive and specific diagnostic criteria.
D. C. Trost   +4 more
wiley   +1 more source

Stochastic optimal and time-optimal control studies for additional food provided prey–predator systems involving Holling type III functional response

open access: yesComputational and Mathematical Biophysics, 2023
This article consists of a detailed and novel stochastic optimal control analysis of a coupled non-linear dynamical system. The state equations are modelled as an additional food-provided prey–predator system with Holling type III functional response for
Prakash Daliparthi Bhanu   +1 more
doaj   +1 more source

Effect of randomly fluctuating environment on autotroph‐herbivore model system

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 68, Page 3703-3716, 2004., 2004
First we deal with a brief introduction of the autotroph‐herbivore model system along with deterministic analysis of local stability, bifurcation behavior, and persistence of the populations. The second part consists of the stochastic formulation of the model system to incorporate the effect of environmental fluctuation and then analysis of ...
Tapan Saha, Malay Bandyopadhyay
wiley   +1 more source

Prevalence of backward stochastic differential equations with unique solution

open access: yesInternational Journal of Stochastic Analysis, Volume 2004, Issue 2, Page 123-136, 2004., 2004
We prove that in the sense of Baire category, almost all backward stochastic differential equations (BSDEs) with bounded and continuous coefficient have the properties of existence and uniqueness of solutions as well as the continuous dependence of solutions on the coefficient and the L2‐convergence of their associated successive approximations.
K. Bahlali, B. Mezerdi, Y. Ouknine
wiley   +1 more source

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