@Article{AAMM-15-602, author = {Cui , MingLi , Yanfei and Yao , Changhui}, title = {Unconditional Superconvergence Analysis of Energy Conserving Finite Element Methods for the Nonlinear Coupled Klein-Gordon Equations}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2023}, volume = {15}, number = {3}, pages = {602--622}, abstract = {
In this paper, we consider the energy conserving numerical scheme for coupled nonlinear Klein-Gordon equations. We propose energy conserving finite element method and get the unconditional superconvergence result $\mathcal{O}(h^2+∆t^2 )$ by using the error splitting technique and postprocessing interpolation. Numerical experiments are carried out to support our theoretical results.
}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.OA-2021-0261}, url = {http://global-sci.org/intro/article_detail/aamm/21443.html} }