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author:

Li, Xianjuan (Li, Xianjuan.) [1] (Scholars:李娴娟) | Tang, Tao (Tang, Tao.) [2] | Xu, Chuanju (Xu, Chuanju.) [3]

Indexed by:

EI Scopus SCIE

Abstract:

This paper proposes a parallel in time (also called time parareal) method to solve Volterra integral equations of the second kind. The parallel in time approach follows the spirit of the domain decomposition that consists of breaking the domain of computation into subdomains and solving iteratively the subproblems in a parallel way. To obtain a high order of accuracy, a spectral collocation accuracy enhancement in subdomains will be employed. Our main contributions in this work are twofold: (i) A time parareal method is designed for the integral equations, which to our knowledge is the first of its kind. The new method is an iterative process combining a coarse prediction in the whole domain with fine corrections in subdomains by using spectral approximation, leading to an algorithm of very high accuracy. (ii) A rigorous convergence analysis of the overall method is provided. The numerical experiment confirms that the overall computational cost is considerably reduced while the desired spectral rate of convergence can be obtained.

Keyword:

spectral collocation time parareal Volterra integral equations

Community:

  • [ 1 ] [Li, Xianjuan]Fuzhou Univ, Coll Math & Comp Sci, Fuzhou 350108, Peoples R China
  • [ 2 ] [Tang, Tao]Hong Kong Baptist Univ, Dept Math, Kowloon, Hong Kong, Peoples R China
  • [ 3 ] [Tang, Tao]Hong Kong Baptist Univ, Inst Computat & Theoret Studies, Kowloon Tong, Hong Kong, Peoples R China
  • [ 4 ] [Xu, Chuanju]Xiamen Univ, Sch Math Sci, Xiamen 361005, Peoples R China

Reprint 's Address:

  • [Xu, Chuanju]Xiamen Univ, Sch Math Sci, Xiamen 361005, Peoples R China

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Source :

SIAM JOURNAL ON NUMERICAL ANALYSIS

ISSN: 0036-1429

Year: 2013

Issue: 3

Volume: 51

Page: 1735-1756

1 . 6 9

JCR@2013

2 . 8 0 0

JCR@2023

ESI Discipline: MATHEMATICS;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 36

SCOPUS Cited Count: 34

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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