TY - JOUR T1 - A Discontinuous Galerkin Method by Patch Reconstruction for Biharmonic Problem AU - Li , Ruo AU - Ming , Pingbing AU - Sun , Zhiyuan AU - Yang , Fanyi AU - Yang , Jerry Zhijian JO - Journal of Computational Mathematics VL - 4 SP - 524 EP - 540 PY - 2019 DA - 2019/02 SN - 37 DO - http://doi.org/10.4208/jcm.1807-m2017-0276 UR - https://global-sci.org/intro/article_detail/jcm/13007.html KW - Least-squares problem, Reconstructed basis function, Discontinuous Galerkin method, Biharmonic problem. AB -
We propose a new discontinuous Galerkin method based on the least-squares patch reconstruction for the biharmonic problem. We prove the optimal error estimate of the proposed method. The two-dimensional and three-dimensional numerical examples are presented to confirm the accuracy and efficiency of the method with several boundary conditions and several types of polygon meshes and polyhedral meshes.