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Title: Block relaxation strategies

Conference ·

It is desired to solve the linear system Ax = b, where the matrix A is n x n block tridiagonal with block size m. This system is to be solved by block line relaxation when the largest block problem with block size m that can be cheaply solved directly is l x l. Iteration steps, strategies, and results are summarized. It is concluded that the convergence rate of some block relaxation strategies is much faster than that of the strategies generally used. (RWR)

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5241914
Report Number(s):
LA-UR-80-2342; CONF-800699-2
Resource Relation:
Conference: Elliptic problem solvers conference, Santa Fe, NM, USA, 30 Jun 1980
Country of Publication:
United States
Language:
English