A Simple Low-Degree Optimal Finite Element Scheme for the Elastic Transmission Eigenvalue Problem

A Simple Low-Degree Optimal Finite Element Scheme for the Elastic Transmission Eigenvalue Problem

Year:    2021

Author:    Yingxia Xi, Xia Ji, Shuo Zhang

Communications in Computational Physics, Vol. 30 (2021), Iss. 4 : pp. 1061–1082

Abstract

The paper presents a finite element scheme for the elastic transmission eigenvalue problem written as a fourth order eigenvalue problem. The scheme uses piecewise cubic polynomials and obtains optimal convergence rate. Compared with other low-degree and nonconforming finite element schemes, the scheme inherits the continuous bilinear form which does not need extra stabilizations and is thus simple to implement.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.OA-2020-0260

Communications in Computational Physics, Vol. 30 (2021), Iss. 4 : pp. 1061–1082

Published online:    2021-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    22

Keywords:    Elastic transmission eigenvalue problem nonconforming finite element method high accuracy

Author Details

Yingxia Xi

Xia Ji

Shuo Zhang