arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2302.02240math.NAcs.NA
收藏

反应-对流-扩散方程允许小边的VEM离散化:源和谱问题

VEM discretization allowing small edges for the reaction-convection-diffusion equation: source and spectral problems

Felipe Lepe, Gonzalo Rivera

摘要:

在本文中,我们分析了负载经典的反应-对流-扩散问题和对流扩散谱问题,其中多边形网格上的假设允许考虑多边形的小边的最低阶虚拟元方法。根据定义良好的几何方法依赖于一个合适的稳定,我们推导出适定性的数值方案和误差估计的负载问题,而对于谱问题,我们得到收敛性和误差估计的特征值和特征函数。我们报告的数值测试,以评估我们的数值方法的小边缘的性能,这两个问题正在考虑中。

英文摘要:

In this paper we analyze a lowest order virtual element method for the load classic reaction-convection-diffusion problem and the convection-diffusion spectral problem, where the assumptions on the polygonal meshes allow to consider small edges for the polygons. Under well defined seminorms depending on a suitable stabilization for this geometrical approach, we derive the well posedness of the numerical scheme and error estimates for the load problem, whereas for the spectral problem we derive convergence and error estimates for the eigenvalues and eigenfunctions. We report numerical tests to assess the performance of the small edges on our numerical method for both problems under consideration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑