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Activities
Asymptotic error estimates of finite element methods for nonlocal problems
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Reporter:
Xiaobo Yin, Professor, Central China Normal University
Inviter:
Hehu Xie, Professor
Subject:
Asymptotic error estimates of finite element methods for nonlocal problems
Time and place:
15:30-16:30 December 12(Thursday), Tencent Meeting: 543-340-552
Abstract:

In this talk, we study the asymptotic error between the finite element solutions of nonlocal models with a bounded interaction neighborhood and the exact solution of the limiting local model. The limit corresponds to the case when the horizon parameter, the radius of the spherical nonlocal interaction neighborhood of the nonlocal model,  and the mesh size simultaneously approach zero. Two important cases are discussed: one involving the original nonlocal models and the other for nonlocal models with polygonal approximations of the nonlocal interaction neighborhood. Results of numerical experiments are also reported to substantiate the theoretical studies.