نتایج جستجو برای: random differential equations

تعداد نتایج: 737064  

Journal: :Journal of computational dynamics 2023

We propose a straightforward basin search algorithm to determine suitably large level set of the mean-square Lyapunov-function that corresponds linearization about an path-wise equilibrium solution random ordinary differential equation (RODE). Noise intensity plays crucial role for how similar behavior solutions RODEs is compared corresponding deterministic system. In this regards, also allows ...

Journal: :J. Comput. Physics 2016
Christopher Angstmann Isaac C. Donnelly Bruce Ian Henry B. A. Jacobs T. A. M. Langlands James A. Nichols

We have introduced a new explicit numerical method, based on a discrete stochastic process, for solving a class of fractional partial differential equations that model reaction subdiffusion. The scheme is derived from the master equations for the evolution of the probability density of a sum of discrete time random walks. We show that the diffusion limit of the master equations recovers the fra...

In recent years, Fuzzy differential equations are very useful indifferent sciences such as physics, chemistry, biology and economy. It should be noted, that if the equations that appear to be uncertain, then take help of fuzzy logic at these equations. Considering that most of the time analytic solution of such equations and finding an exact solution has either high complexity or cannot be solv...

Journal: :iranian journal of science and technology (sciences) 2014
m. matinfar

in this paper, the variational homotopy perturbation method (vhpm) and its convergence is adopted for thezakharove-kuznetsov equations (zk-equations). the aim of this paper is to present an efficient and reliabletreatment of the vhpm for the nonlinear partial differential equations and show that this method is convergent.the convergence of the applied method is approved using the method of majo...

2011
Roland Pulch

Technical applications are often modeled by systems of differential algebraic equations. The systems may include parameters that involve some uncertainties. We arrange a stochastic model for uncertainty quantification in the case of linear systems of differential algebraic equations. The generalized polynomial chaos yields a larger linear system of differential algebraic equations, whose soluti...

2014
Xiaoying Han

We study stochastic partly dissipative lattice systems with random coupled coefficients and multiplicative/additive white noise in a weighted space of infinite sequences. We first show that these stochastic partly dissipative lattice differential equations generate a random dynamical system. We then establish the existence of a tempered random bounded absorbing set and a global compact random a...

2007
Endre Pap

There are presented two applications of pseudo-analysis in the theory of random sets and nonlinear partial differential equations.

Journal: :bulletin of the iranian mathematical society 2011
a. khani m. mohseni moghadam s. shahmorad

Journal: :bulletin of the iranian mathematical society 2012
a. ahmadkhanlu m. jahanshahi

n this paper, at first the  concept of caputo fractionalderivative is generalized on time scales. then the fractional orderdifferential equations are introduced on time scales. finally,sufficient and necessary conditions are presented for the existenceand uniqueness of solution of initial valueproblem including fractional order differential equations.

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