A second order numerical method for a Volterra integro-differential equation with a weakly singular kernel

A second order numerical method for a Volterra integro-differential equation with a weakly singular kernel

In this paper, a second finite difference method on a graded grid is proposed for a Volterra integro-differential equation with a weakly singular kernel. The proposed scheme is obtained by using the two-step backward differentiation formula (BDF2) to discretize the first derivative term and the firs...

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Veröffentlicht in:Networks and heterogeneous media 2024, Vol.19 (2), p.740-752
Hauptverfasser: Liu, Li-Bin, Ye, Limin, Bao, Xiaobing, Zhang, Yong
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Bao, Xiaobing
Zhang, Yong
description In this paper, a second finite difference method on a graded grid is proposed for a Volterra integro-differential equation with a weakly singular kernel. The proposed scheme is obtained by using the two-step backward differentiation formula (BDF2) to discretize the first derivative term and the first-order interpolation scheme to approximate the integral term. The analysis of stability is proved and used to prove the convergence of our presented numerical method in the discrete maximum norm. Finally, Numerical experiments are given to verify the theoretical results.
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title A second order numerical method for a Volterra integro-differential equation with a weakly singular kernel
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