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- W4313347662 abstract "A systematic numerical study on weak Galerkin (WG) finite element method for second order linear parabolic problems is presented by allowing polynomial approximations with various degrees for each local element. Convergence of both semidiscrete and fully discrete WG solutions are established in $L^{infty}(L^2)$ and $L^{infty}(H^1)$ norms for a general WG element $({cal P}_{k}(K),;{cal P}_{j}(partial K),;big[{cal P}_{l}(K)big]^2)$, where $kge 1$, $jge 0$ and $lge 0$ are arbitrary integers. The fully discrete space-time discretization is based on a first order in time Euler scheme. Our results are intended to extend the numerical analysis of WG methods for elliptic problems [J. Sci. Comput., 74 (2018), 1369-1396] to parabolic problems. Numerical experiments are reported to justify the robustness, reliability and accuracy of the WG finite element method." @default.
- W4313347662 created "2023-01-06" @default.
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- W4313347662 date "2021-03-25" @default.
- W4313347662 modified "2023-09-29" @default.
- W4313347662 title "A Systematic Study on Weak Galerkin Finite Element Method for Second Order Parabolic Problems" @default.
- W4313347662 doi "https://doi.org/10.48550/arxiv.2103.13669" @default.
- W4313347662 hasPublicationYear "2021" @default.
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