12:00-12:30 lunch；12:30-13:30 Talk

Abstract: This report concerns the application of the weak Galerkin (WG) finite element method to the elliptic

eigenvalue problem with an emphasis on obtaining lower bounds. The WG method uses discontinuous

polynomials on polygonal or polyhedral finite element partitions. The non-conforming finite element space of

the WG method is the key of the lower bound property. It also makes the WG method more robust and

flexible in solving eigenvalue problems. We demonstrate that the WG method can achieve arbitrary high

convergence order. Numerical results are presented to demonstrate the efficiency and accuracy of the theoretical results.

欢迎各位同学积极参加，报名链接https://www.wjx.top/jq/33008489.aspx，报名截止时间为12月28日上午10:00，我们将为报名同学提供午餐。