Results 231 to 240 of about 535,226 (278)

Block P-matrices

Linear and Multilinear Algebra, 1998
Several possibilities to generalize P-matrices to block form are discussed. Unfortunately certain equivalences holding for P-matrices do not carry over to the block case. We opt for one such generalization calling it block P-matrices. It has the most analogies to the usual P-matrices.
Elsner, Ludwig, Szulc, Tomasz
openaire   +4 more sources

Block H-matrices and spectrum of block matrices

Applied Mathematics and Mechanics, 2002
Several generalizations for block \(H\)-matrices are studied by the concept of \(G\)-functions. Equivalent characterizations of \(H\)-matrices are discussed. A spectrum location of block \(H\)-matrices is determined.
Huang, Tingzhu, Li, Wen
openaire   +1 more source

Decomposing Matrices into Blocks

SIAM Journal on Optimization, 1998
Summary: In this paper we investigate whether matrices arising from linear or integer programming problems can be decomposed into so-called bordered block diagonal form. More precisely, given some matrix \(A\), we try to assign as many rows as possible to some number \(\beta\) of blocks of size \(\kappa\) such that no two rows assigned to different ...
Borndörfer, Ralf   +2 more
openaire   +1 more source

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