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On a Moving Mesh Method for Solving Partial Integro-Differential Equations

On a Moving Mesh Method for Solving Partial Integro-Differential Equations
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Year:    2009

Journal of Computational Mathematics, Vol. 27 (2009), Iss. 6 : pp. 713–728

Abstract

This paper develops and analyzes a moving mesh finite difference method for solving partial integro-differential equations. First, the time-dependent mapping of the coordinate transformation is approximated by a piecewise quadratic polynomial in space and a piecewise linear function in time. Then, an efficient method to discretize the memory term of the equation is designed using the moving mesh approach. In each time slice, a simple piecewise constant approximation of the integrand is used, and thus a quadrature is constructed for the memory term. The central finite difference scheme for space and the backward Euler scheme for time are used. The paper proves that the accumulation of the quadrature error is uniformly bounded and that the convergence of the method is second order in space and first order in time. Numerical experiments are carried out to confirm the theoretical predictions.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jcm.2009.09-m2852

Journal of Computational Mathematics, Vol. 27 (2009), Iss. 6 : pp. 713–728

Published online:    2009-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    16

Keywords:    Partial integro-differential equations Moving mesh methods Stability and Convergence.

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