Computational Math Seminar: Ben Southworth
Root node smoothed aggregation for anisotropic diffusion
Ben Southworth
Applied Mathematics,Ìý
Date and time:Ìý
Tuesday, December 8, 2015 - 11:00am
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GRVW 105
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Anisotropic diffusion is a difficult problem to solve numerically, particularly on unstructured meshes or if the angle of anisotropy is not aligned with the mesh. In this talk I will discuss why this is difficult, specifically for multigrid-type solvers, and look at the limitations of a current state-of-the-art root node smoothed aggregation routine. I will then introduce a new perspective on root node smoothed aggregation to address these limitations, and provide an initial theoretical result on convergence.