در حال نمایش موارد 1 - 6 از 6
A robust method for optimal control problems governed by system of Fredholm integral equations in mechanics
This essay considers an optimal control problem (OCP) governed by a system of Fredholm integral equations (FIE). In this paper, collocation approach with utilizing Lagrange polynomials is introduced to transform the OCP ...
Preconditioned global GPBiCG method for solving saddle point problems with multiple right-hand sides and its convergence analysis
We propose the preconditioned global generalized product-type method based on the preconditioned global BiCG method to solve nonsymmetric saddle point problems with multiple right-hand sides. We apply an indefinite ...
Numerical approximation for inverse problem of the Ostrovsky–Burgers equation
This article considers a nonlinear inverse problem of the Ostrovsky–Burgers equation by using noisy data. Two B-Splines with different levels, the quintic B-spline and septic B-spline, are used to study this problem. For ...
Numerical solution of fractional Bagley–Torvik equations using Lucas polynomials
The aim of this article is to present a new method based on Lucas poly-nomials and residual error function for a numerical solution of fractional Bagley–Torvik equations. Here, the approximate solution is expanded as a ...
A shifted fractional-order Hahn functions Tau method for time-fractional PDE with nonsmooth solution
In this paper, a new orthogonal system of nonpolynomial basis functions is introduced and used to solve a class of time-fractional partial differential equations that have nonsmooth solutions. In fact, unlike polynomial ...
A new iteration method for solving space fractional coupled nonlinear Schrödinger equations
A linearly implicit difference scheme for the space fractional coupled nonlinear Schrödinger equation is proposed. The resulting coeﬀicient matrix of the discretized linear system consists of the sum of a complex scaled ...