نتایج جستجو برای: system of volterra integral equations

تعداد نتایج: 21368741  

M Mahmoudi Monfared R Bagheri,

In this paper, the analytical solution of an electric and Volterra edge dislocation in a functionally graded piezoelectric (FGP) medium is obtained by means of complex Fourier transform. The system is subjected to in-plane mechanical and electrical loading. The material properties of the medium vary exponentially with coordinating parallel to the crack. In this study, the rate of the gradual ch...

‎‎‎‎‎‎‎‎‎‎‎‎‎This paper aims to construct a general formulation for the shifted Jacobi operational matrices of integration and product‎. ‎The main aim is to generalize the Jacobi integral and product operational matrices to the solving system of Fredholm and Volterra integro--differential equations‎ which appear in various fields of science such as physics and engineering. ‎The Operational matr...

Journal: :computational methods for differential equations 0
amir hossein salehi shayegan k. ‎n‎. ‎toosi university of technology ali zakeri k. n. toosi university of technology m. r. ‎peyghami ‎k‎. ‎n‎. ‎toosi university of technology

‎in this paper‎, ‎an approach based on statistical spline model (ssm) and collocation method is proposed to solve volterra-fredholm integral equations‎. ‎the set of collocation nodes is chosen so that the points yield minimal error in the nodal polynomials‎. ‎under some standard assumptions‎, ‎we establish the convergence property of this approach‎. ‎numerical results on some problems are given...

Journal: :iranian journal of science and technology (sciences) 2014
e. rahimi

a method for solving a class of weakly singular volterra integral equations is given by using the fractional differential transform method. the approximate solution of these equa­tions is calculated in the form of a finite series with easily computable terms. while in some examples this series solution increased up to the exact closed solution, in some other examples, we can see the accuracy an...

Journal: :international journal of industrial mathematics 0
r. ketabchi‎ department of mathematics, science and research branch, islamic azad university,tehran,‎iran‎. r. mokhtari department of mathematical sciences, isfahan university of technology, isfahan 84156-83111, ‎iran‎. e. babolian department of mathematics, science and research branch, islamic azad university, tehran, ‎iran.

this paper is concerned with a technique for solving volterra integral equations in the reproducing kernel hilbert space. in contrast with the conventional reproducing kernel method, the gram-schmidt process is omitted here and satisfactory results are obtained.the analytical solution is represented in the form of series.an iterative method is given to obtain the approximate solution.the conver...

Journal: :علوم 0
اسماعیل بابلیان esmaeil babolian دانشگاه علیرضا وحیدی ar vahidi دانشگاه خوارزمی

in this paper, we conduct a comparative study between the homotopy perturbation method (hpm) and adomian’s decomposition method (adm) for analytic treatment of nonlinear volterra integral equations, and we show that the hpm with a specific convex homotopy is equivalent to the adm for these type of equations.

Journal: :journal of linear and topological algebra (jlta) 0
r firouzdor department of mathematics, islamic azad university and young researcher club, central tehran branch, central tehran branch a heidarnejad khoob department of mathematics, islamic azad university z mollaramezani department of mathematics, payameh noor university, new city hashgerd, hashgerd, iran

this paper describes an approximating solution, based on lagrange interpolation and spline functions, to treat functional integral equations of fredholm type and volterra type. this method can be extended to functional di erential and integro-di erential equations. for showing eciency of the method we give some numerical examples.

Journal: :sahand communications in mathematical analysis 0
parviz darania department of mathematics, faculty of science, urmia university, p.o.box 5756151818, urmia-iran.

‎the main purpose of this paper is to study the numerical solution of nonlinear volterra integral equations with constant delays, based on the multistep collocation method. these methods for approximating the solution in each subinterval are obtained by fixed number of previous steps and fixed number of collocation points in current and next subintervals. also, we analyze the convergence of the...

Journal: :journal of mathematical modeling 0
saeed pishbin

in this paper, we consider a particular class of integral equations of the fourth kind and show that tractability and di fferentiability index of the given system are 3. tractability and di erentiability index are introduced based on the-smoothing property of a volterra integral operator and index reduction procedure, respectively. using the notion of index, we give sucient conditions for the...

H. Almasieh J. Nazari Meleh,

In this paper, a numerical method is proposed for solving optimal control problem of Volterra integral equations using radial basis functions (RBFs) for approximating unknown function. Actually, the method is based on interpolation by radial basis functions including multiquadrics (MQs), to determine the control vector and the corresponding state vector in linear dynamic system while minimizing...

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