نتایج جستجو برای: nonlinear partialdifferential equations npdes

تعداد نتایج: 419274  

Journal: :iranian journal of fuzzy systems 2014
m. otadi m. mosleh

in this paper, we use the parametric form of fuzzy numbers, and aniterative approach for obtaining approximate solution for a classof fuzzy nonlinear fredholm integral equations of the second kindis proposed. this paper presents a method based on newton-cotesmethods with positive coefficient. then we obtain approximatesolution of the fuzzy nonlinear integral equations by an iterativeapproach.

Journal: :sahand communications in mathematical analysis 2015
parviz darania jafar ahmadi shali

in this paper, we studied the numerical solution of nonlinear weakly singular volterra-fredholm integral equations by using the product integration method. also, we shall study the convergence behavior of a fully discrete version of a product integration method for numerical solution of the nonlinear volterra-fredholm integral equations. the reliability and efficiency of the proposed scheme are...

In this article the nonlinear mixed Volterra-Fredholm integral equations are investigated by means of the modied three-dimensional block-pulse functions (M3D-BFs). This method converts the nonlinear mixed Volterra-Fredholm integral equations into a nonlinear system of algebraic equations. The illustrative   examples are provided to demonstrate the applicability and simplicity of our   scheme.    

Journal: :نظریه تقریب و کاربرد های آن 0
ل. هوشنگیان دانشگاه آزاد واحد دزفول د. میرزایی دانشکده ریاضی دانشگاه اصفهان

this paper gives an ecient numerical method for solving the nonlinear systemof volterra-fredholm integral equations. a legendre-spectral method based onthe legendre integration gauss points and lagrange interpolation is proposedto convert the nonlinear integral equations to a nonlinear system of equationswhere the solution leads to the values of unknown functions at collocationpoints.

A. G. Ghazanfari B. Ghazanfari

In this paper, we apply fractional complex transform to convert the fractional nonlinear Schr"{o}dinger equations to the nonlinear Schr"{o}dinger equations.  

Journal: :Frontiers in Physics 2023

In this paper, we consider three models of non-linear Schrödinger’s equations (NLSEs) via It\^{o} sense. Specifically, study these forced by multiplicative noise the Brownian motion process. There are numerous approaches for converting partial differential (NPDEs) into ordinary (ODEs) to extract wave solutions. The majority methods a type symmetry reduction known as non-classical symmetry. We a...

Journal: :نظریه تقریب و کاربرد های آن 0
m. tavassoli-kajani department of mathematics, islamic azad university, khorasgan branch, isfahan, iran. l. kargaran-dehkordi department of mechanic, shahr-e-kord university, shahr-e-kord, iran. sh. hadian-jazi department of mechanic, shahr-e-kord university, shahr-e-kord, iran.

this paper proposes a three-step method for solving nonlinear volterra integralequations system. the proposed method convents the system to a (3 × 3)nonlinear block system and then by solving this nonlinear system we ndapproximate solution of nonlinear volterra integral equations system. to showthe advantages of our method some numerical examples are presented.

Journal: :international journal of mathematical modelling and computations 0
azizallah alvandi dasddadaaas mahmoud paripour department of mathematics, hamedan university of technology, hamedan, 65156-579, iran

in this letter, the numerical scheme of nonlinear volterra-fredholm integro-differential equations is proposed in a reproducing kernel hilbert space (rkhs). the method is constructed based on the reproducing kernel properties in which the initial condition of the problem is satis ed. the nonlinear terms are replaced by its taylor series. in this technique, the nonlinear volterra-fredholm integr...

A Kudin, M.A.V Al Omari S Choporov Yu Tamurov

Herein paper compares the analytical model with the FEM based numerical model of the axisymmetric bending of circular sandwich plates. Also, the paper describes equations of the circular symmetrical sandwich plates bending with isotropic face sheets and the nonlinear elastic core material. The method of constructing an analytical solution of nonlinear differential equations has been described. ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید