Academy of Mathematics and Systems Science, CAS Colloquia & Seminars
Speaker:
Dr. Yunrong Zhu,Idaho State University
Inviter:
Chensong Zhang
Title:
Multilevel methods for reaction-diffusion equations
Time & Venue:
2015.7.8 9:30-10:30am Z311
Abstract:
In this talk, we consider the multilevel methods for solving the linear systems arising from the linear finite element approximation of the reaction-diffusion problems, where both diffusion and reaction coefficients are piecewise constant functions. We discuss in detail the influence of both the discontinuous reaction and diffusion coefficients to the performance of the classical BPX and multigrid V-cycle preconditioners. We show the robustness of these methods with respect to the mesh size and the discontinuous coefficients.
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