De Rham Complexes for Weak Galerkin Finite Element Spaces
De Rham Complexes for Weak Galerkin Finite Element Spaces
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DOI:
10.1016/j.cam.2021.113645
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发表时间:
2020-04
期刊:
影响因子:
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通讯作者:
Chunmei Wang;Junping Wang;X. Ye;Shangyou Zhang
中科院分区:
文献类型:
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作者:
Chunmei Wang;Junping Wang;X. Ye;Shangyou Zhang
Two de Rham complex sequences of the finite element spaces are introduced for weak finite element functions and weak derivatives developed in the weak Galerkin (WG) finite element methods on general polyhedral elements. One of the sequences uses polynomials of equal order for all the finite element spaces involved in the sequence and the other one uses polynomials of naturally descending orders. It is shown that the diagrams in both de Rham complexes commute for general polyhedral elements. The exactness of one of the complexes is established for the lowest order element.