TY - JOUR
T1 - Some Domain Decomposition and Iterative Refinement Algorithms for Elliptic Finite Element Problems
AU - Olof Widlund
JO - Journal of Computational Mathematics
VL - 2
SP - 200
EP - 208
PY - 1989
DA - 1989/07
SN - 7
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jcm/9470.html
KW - 
AB - <p style="text-align: justify;">In this contribution, we report on some results recently obtained in joint work with Maksymilian Dryja. We first study an additive variant of Schwarz&#39; alternating algorithm and establish that a fast method of this kind can be devised which is optimal in the sense that the number of conjugate gradient iterations required, to reach a certain tolerance, is independent of the mesh size as well as the number of subregions.</p>