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  • List of Articles


      • Open Access Article

        1 - Determination of a Source Term in an Inverse Heat Conduction Problem by Radial Basis Functions
        Muhammad Arghand
        In this paper, we propose a technique for determining a source term in an inverse heat conduction problem (IHCP) using Radial Basis Functions (RBFs). Because of being very suitable instruments, the RBFs have been applied for solving Partial Di erential Equations (PDEs) More
        In this paper, we propose a technique for determining a source term in an inverse heat conduction problem (IHCP) using Radial Basis Functions (RBFs). Because of being very suitable instruments, the RBFs have been applied for solving Partial Di erential Equations (PDEs) by some researchers. In the current study, a stable meshless method will be pro- posed for solving an (IHCP). The other advantage of the method is that can be applied to the problems with various types of boundary conditions. The results of numerical experiments are presented and compared with analytical solutions. The results demonstrate the reliability and efficiency of the proposed scheme. Manuscript profile
      • Open Access Article

        2 - ABS-Type Methods for Solving $m$ Linear Equations in $\frac{m}{k}$ Steps for $k=1,2,\cdots,m$
        Leila Asadbeigi Majid Amirfakhrian
        ‎The ABS methods‎, ‎introduced by Abaffy‎, ‎Broyden and Spedicato‎, ‎are‎‎direct iteration methods for solving a linear system where the‎‎$i$-th iteration satisfies the first $i$ equations‎, ‎therefore a‎ ‎syst More
        ‎The ABS methods‎, ‎introduced by Abaffy‎, ‎Broyden and Spedicato‎, ‎are‎‎direct iteration methods for solving a linear system where the‎‎$i$-th iteration satisfies the first $i$ equations‎, ‎therefore a‎ ‎system of $m$ equations is solved in at most $m$ steps‎. ‎In this‎‎paper‎, ‎we introduce a class of ABS-type methods for solving a full row‎‎rank linear equations‎, ‎where the $i$-th iteration solves the first‎‎$3i$ equations‎. ‎We also extended this method for $k$ steps‎. ‎So‎,‎termination is achieved in at most $\left[\frac{m+(k-1)}{k}\right]$‎‎steps‎. ‎Morever in our new method in each iteration, we have the‎‎the general solution of each iteration‎. Manuscript profile
      • Open Access Article

        3 - A Third Order Iterative Method for Finding Zeros of Nonlinear Equations
        Manijheh Tavoosi
        ‎In this paper‎, ‎we present a new modification of Newton's method‎ ‎for finding a simple root of a nonlinear equation‎. ‎It has been‎ ‎proved that the new method converges cubically‎.
        ‎In this paper‎, ‎we present a new modification of Newton's method‎ ‎for finding a simple root of a nonlinear equation‎. ‎It has been‎ ‎proved that the new method converges cubically‎. Manuscript profile
      • Open Access Article

        4 - Solving a Class of Partial Differential Equations by Differential Transforms Method
        Maryam Fahimi
        ‎In this work, we find the differential transforms of the functions $\tan$ and‎ ‎$\sec$‎, ‎and then we applied this transform on a class of partial differential equations involving $\tan$ and‎ ‎$\sec$‎.
        ‎In this work, we find the differential transforms of the functions $\tan$ and‎ ‎$\sec$‎, ‎and then we applied this transform on a class of partial differential equations involving $\tan$ and‎ ‎$\sec$‎. Manuscript profile
      • Open Access Article

        5 - Numerical Solution of The Parabolic Equations by Variational Iteration Method and Radial Basis Functions
        Sara Hosseini
        ‎In this work‎, ‎we consider the parabolic equation‎: ‎$u_t-u_{xx}=0$‎. ‎The purpose of this paper is to introduce the method of‎ ‎variational iteration method and radial basis functions for‎ ‎solving this equation‎. ‎ More
        ‎In this work‎, ‎we consider the parabolic equation‎: ‎$u_t-u_{xx}=0$‎. ‎The purpose of this paper is to introduce the method of‎ ‎variational iteration method and radial basis functions for‎ ‎solving this equation‎. ‎Also, the method is implemented to three‎ ‎numerical examples‎. ‎The results reveal‎ ‎that the technique is very effective and simple. Manuscript profile
      • Open Access Article

        6 - A Note on the Convergence of the Homotopy Analysis Method for Nonlinear Age-Structured Population Models
        Soheila Naghshband
        In this paper, a theorem is proved which presents the series solution obtained from the homotopy analysis method is convergent to the exact solution of nonlinear age-structured population models.
        In this paper, a theorem is proved which presents the series solution obtained from the homotopy analysis method is convergent to the exact solution of nonlinear age-structured population models. Manuscript profile