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Hybridized weak Galerkin finite element method for linear elasticity problem in mixed form

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Abstract

A hybridization technique is applied to the weak Galerkin finite element method (WGFEM) for solving the linear elasticity problem in mixed form. An auxiliary function, the Lagrange multiplier defined on the boundary of elements, is introduced in this method. Consequently, the computational costs are much lower than the standard WGFEM. Optimal order error estimates are presented for the approximation scheme. Numerical results are provided to verify the theoretical results.

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Acknowledgements

This work was supported in part by the National Natural Science Foundation of China (Grant Nos. 11771179, 11726102, 91630201, U1530116, 11471141, 11871245), the Program for Cheung Kong Scholars of Ministry of Education of China, and the Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University (No. 93K172018Z01).

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Correspondence to Xiaoshen Wang.

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Wang, R., Wang, X., Zhang, K. et al. Hybridized weak Galerkin finite element method for linear elasticity problem in mixed form. Front. Math. China 13, 1121–1140 (2018). https://doi.org/10.1007/s11464-018-0730-z

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  • DOI: https://doi.org/10.1007/s11464-018-0730-z

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