CAM Seminar

October 14, 2020

Jinjin Zhang, University of Kansas.

Title: BDDC Algorithms for Advection-diffusion problems with HDG Discretizations

Abstract: In this talk, I will talk the balancing domain decomposition methods (BDDC) for the non-symmetric positive definite system from the HDG discretization of advection-diffusion equations. Since the degrees of freedom are only defined on the mesh element boundaries, appropriate extensions to the element interiors are needed. I will analyze the convergence rate of the GMRES solver and present the numerical results with different viscosities and polynomial degrees of the HDG basis functions under three different constrains.

CAM Seminar Fall 2020