Explore an advanced finite element method (FEM) seminar presented by Lin Mu from the University of Georgia, focusing on solving diffusion equations with strong anisotropy. Delve into the development of a high-order discontinuous Galerkin scheme with an efficient preconditioner, designed to address numerical pollution in non-anisotropy-aligned meshes and reduce computational costs. Examine the auxiliary space preconditioning framework and the implementation of an effective line smoother using a graph-based approach. Gain insights into applications in magnetic confinement fusion and review numerical experiments that validate the method's effectiveness and robustness. Discover cutting-edge research in finite element analysis and its practical applications in solving complex diffusion problems.