Multiscale asymptotic expansion and a post-processing algorithm for second-order elliptic problems with highly oscillatory coefficients over general convex domains

  • Authors:
  • Li-Qun Cao;Jun-Zhi Cui;Jian-Lan Luo

  • Affiliations:
  • Institute of Computational Mathematics and Science/Engineering Computing, The Academy of Mathematics and System Sciences, The Chinese Academy of Sciences, P.O. Box 2719, 100080, Beijing, People's ...;Institute of Computational Mathematics and Science/Engineering Computing, The Academy of Mathematics and System Sciences, The Chinese Academy of Sciences, P.O. Box 2719, 100080, Beijing, People's ...;Department of Applied Physics, School of Sciences, Beijing University of Aeronautics and Astronautics, 100083 Beijing, People's Republic of China

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2003

Quantified Score

Hi-index 7.29

Visualization

Abstract

In this paper, we consider the boundary value problem of second-order elliptic type equation with highly oscillatory coefficients over general Lipschitz convex domains, and obtain the multiscale asymptotic expansion of solution for this kind of problem. At the same time, a high accuracy FE computing scheme and a post-processing technique are presented. Finally, numerical results support strongly the theoretical analysis reported in this paper.