Dzhordzh, A.; Ikramov, Kh. D. Block LU factorization is stable for block matrices whose inverses are block diagonally dominant. (English. Russian original) Zbl 1116.65034 J. Math. Sci., New York 127, No. 3, 1962-1968 (2005); translation from Zap. Nauchn. Semin. POMI 296, 15-26 (2003). MSC: 65F05 15A23 65F35 PDFBibTeX XMLCite \textit{A. Dzhordzh} and \textit{Kh. D. Ikramov}, J. Math. Sci., New York 127, No. 3, 1962--1968 (2003; Zbl 1116.65034); translation from Zap. Nauchn. Semin. POMI 296, 15--26 (2003) Full Text: DOI
Dzhordzh, A.; Ikramov, Kh. D. The closeness of certain classes of matrices with respect to pseudo-inversion. (Russian, English) Zbl 1081.15513 Zh. Vychisl. Mat. Mat. Fiz. 42, No. 9, 1290-1294 (2002); translation in Comput. Math. Math. Phys. 42, No. 9, 1242-1246 (2002). Reviewer: Evgenij Nechaev (Moskva) MSC: 15A09 PDFBibTeX XMLCite \textit{A. Dzhordzh} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 42, No. 9, 1290--1294 (2002; Zbl 1081.15513); translation in Comput. Math. Math. Phys. 42, No. 9, 1242--1246 (2002)