نتایج جستجو برای: hyperbolic equations with purely integral conditions

تعداد نتایج: 9592176  

Journal: :international journal of mathematical modelling and computations 0
s. m. mirzaei faculty of science, minoodasht branch, islamic azad university, iran iran, islamic republic of department of mathematics

in this paper, we will compare a homotopy perturbation algorithm and taylor series expansin method for a system of second kind fredholm integral equations. an application of he’s homotopy perturbation method is applied to solve the system of fredholm integral equations. taylor series expansin method reduce the system of integral equations to a linear system of ordinary differential equation.

Journal: :Mathematical Modelling and Numerical Analysis 2021

In this paper, we propose a local discontinuous Galerkin (LDG) method for nonlinear and possibly degenerate parabolic stochastic partial differential equations, which is high-order numerical scheme. It extends the (DG) purely hyperbolic equations to shares with DG its advantage flexibility. We prove L 2 -stability of scheme fully equations. Optimal error estimates ( O h (k+1) )) smooth solution...

Journal: :نظریه تقریب و کاربرد های آن 0
ش جوادی دانشگاه خوارزمی تهران ج سعیدیان دانشگاه خوارزمی تهران ف صفری دانشکده ریاضی دانشگاه خوارزمی تهران

an ecient method, based on the legendre wavelets, is proposed to solve thesecond kind fredholm and volterra integral equations of hammerstein type.the properties of legendre wavelet family are utilized to reduce a nonlinearintegral equation to a system of nonlinear algebraic equations, which is easilyhandled with the well-known newton's method. examples assuring eciencyof the method and ...

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.

In this work, a new iterative method is proposed for obtaining the approximate solution of a class of Hammerstein type Integral Equations System. The main structure of this method is based on the Richardson iterative method for solving an algebraic linear system of equations. Some conditions for existence and unique solution of this type equations are imposed. Convergence analysis and error bou...

2003
Albert Cohen Wolfgang Dahmen Ronald DeVore

This chapter highlights recent developments concerning adaptive wavelet methods for time dependent and stationary problems. The first problem class focusses on hyperbolic conservation laws where wavelet concepts exploit sparse representations of the conserved variables. Regarding the second problem class, we begin with matrix compression in the context of boundary integral equations where the k...

Journal: :Mathematical and Computer Modelling 2006
Alberto Cabada Dolores R. Vivero

The theory of dynamic equations appears in the literature in 1988 in the Ph. D. of S. Hilger [18]. The aim of this theory consists in to study differential and difference equations under the same formulation. Thus, the concepts of ∆– derivative and ∆−integral have been defined. These two concepts cover both the classical derivative and the Riemann integral together with the forward and sum oper...

2008
JASPER V. STOKMAN

Hyperbolic beta integrals are analogues of Euler’s beta integral in which the role of Euler’s gamma function is taken over by Ruijsenaars’ hyperbolic gamma function. They may be viewed as (q, q̃ )-bibasic analogues of the beta integral in which the two bases q and q̃ are interrelated by modular inversion, and they entail q-analogues of the beta integral for |q| = 1. The integrals under considerat...

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