نتایج جستجو برای: integral equation

تعداد نتایج: 333064  

Journal: :journal of medical signals and sensors 0

planar d-bar integral equation is one of the inverse scattering solution methods for complex problems including inverse conductivity considered in applications such as electrical impedance tomography (eit). recently two different methodologies are considered for the numerical solution of d-bar integrals equation, namely product integrals and multigrid. the first one involves high computational ...

M. A. Fariborzi Araghi S. Yazdani

In this paper, we present a method for solving the rst kind Abel integral equation. In thismethod, the rst kind Abel integral equation is transformed to the second kind Volterraintegral equation with a continuous kernel and a smooth deriving term expressed by weaklysingular integrals. By using Sidi's sinm - transformation and modied Navot-Simpson'sintegration rule, an algorithm for solving this...

Journal: :international journal of industrial mathematics 0
m. fallahpour‎‎ department of mathematics‎, ‎karaj‎ branch‎, ‎islamic azad university‎, karaj‎, ‎iran.‎ m. khodabin‎ department of mathematics‎, ‎karaj‎ branch‎, ‎islamic azad university‎, karaj‎, ‎iran.‎ k. maleknejad‎ department of mathematics‎, ‎karaj‎ branch‎, ‎islamic azad university‎, karaj‎, ‎iran.

in this paper, a numerical efficient method based on two-dimensional block-pulse functions (bpfs) is proposed to approximate a solution of the two-dimensional linear stochastic volterra-fredholm integral equation. finally the accuracy of this method will be shown by an example.

Journal: :نظریه تقریب و کاربرد های آن 0
م فریبرزی عراقی دانشگاه آزاد واحد تهران مرکز ق کاظمی گلیان دانشگاه آزاد واحد شیراز

in this paper , numerical solotion of abel's integral equationby using the taylor expanssion of the unknown functionvia collection method based on sinc is considered...

Algebraic integral equations is a special category of Volterra integral equations system,  that has many applications in physics and engineering. The principal aim of this paper is to serve the numerical solution of an integral algebraic equation by using the Taylor expansion method. In this method, using the Taylor expansion of the unknown function, the algebraic integral equation system becom...

Journal: :bulletin of the iranian mathematical society 2011
j. pour-mahmoud m. y. rahimi s. shahmorad

M. Tavassoli Kajani, S. Mahdavi

In this paper, we use a combination of Legendre and Block-Pulse functionson the interval [0; 1] to solve the nonlinear integral equation of the second kind.The nonlinear part of the integral equation is approximated by Hybrid Legen-dre Block-Pulse functions, and the nonlinear integral equation is reduced to asystem of nonlinear equations. We give some numerical examples. To showapplicability of...

Urysohn integral equation is one of the most applicable topics in both pure and applied mathematics. The main objective of this paper is to solve the Urysohn type Fredholm integral equation. To do this, we approximate the solution of the problem by substituting a suitable truncated series of the well known Legendre polynomials instead of the known function. After discretization of the problem o...

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.

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