METHODS OF INCOMPLETE FACTORIZATION. PART 3. THEORY AND EXPERIMENTS

V.I. Ilin
VANT. Ser.: Mat. Mod. Fiz. Rroc 1990. Вып.3. С. 22-27.

      The article is the finalizing one in a series of three devoted to methods of incomplete factorization to solve mesh linear equations. It discusses the issues of theoretical substantiation of methods, in particular the issues of no degeneracy of matrices, of the iteration processes convergence, of the evaluation of the iteration convergence velocity. The analysis of experimental data is provided and practical recommendations on implementation of various algorithms are given.