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An optimal two-side Robin-Robin domain decomposition method for H(div)-elliptic problem

Published: June 14, 2025 | arXiv ID: 2506.12485v1

By: Na Xuyang

Potential Business Impact:

Solves hard math problems faster on computers.

Business Areas:
A/B Testing Data and Analytics

In this paper, we develop a new two-side Robin-Robin domain decomposition method for H(div)-elliptic problem. Numerical results show that the convergence rate of the new algorithm only depends on $H/h$, where $H$ is diameter of subdomains and $h$ is the mesh size. Besides, an algebraic system of Robin boundary conditions is derived from the iterative method. We solve it by MINRES and get asymptotically stable iteration numbers as well.

Page Count
12 pages

Category
Mathematics:
Numerical Analysis (Math)