Add to ORKGIn this paper, we provide some characterizations of inverse 푀-matrices with special zero patterns. In particular, we give necessary and sufficient conditions for 푘-diagonal matrices and symmetric 푘-diagonal matrices to be inverse 푀-matrices. In addition, results for triadic matrices, tridiagonal matrices and symmetric 5-diagonal matrices are presented as corollaries
AbstractA nonnegative matrix is called regular if it admits a nonnegative generalized inverse. The s...
A nonnegative matrix is called regular if it admits a nonnegative generalized inverse. The structure...
summary:A real matrix $A$ is a G-matrix if $A$ is nonsingular and there exist nonsingular diagonal m...
AbstractIn this paper, we provide some characterizations of inverse M-matrices with special zero pat...
AbstractIn this paper, we provide some characterizations of inverse M-matrices with special zero pat...
AbstractWe apply the previously proved equivalence of four models to present new characterizations o...
AbstractIf A is an n × n sign pattern matrix, then Q(A) denotes the set of all real n×n matrices B s...
AbstractWe consider Z-matrices and inverse Z-matrices, i.e. those nonsingular matrices whose inverse...
In this paper, we consider matrices whose inverses are tridiagonal Z-matrices. Based on a characteri...
AbstractA result of Johnson, Leighton, and Robinson characterizing sign patterns of real matrices wi...
We use weighted directed graphs to introduce a class of nonnegative matrices which, under a simple c...
AbstractWe use weighted directed graphs to introduce a class of nonnegative matrices which, under a ...
AbstractTridiagonal or Jacobi matrices arise in many diverse branches of mathematics and have been s...
AbstractRecently, a classification of matrices of class Z was introduced by Fiedler and Markham. Thi...
AbstractIt is interesting that inverse M-matrices are zero-pattern (power) invariant. The main contr...
AbstractA nonnegative matrix is called regular if it admits a nonnegative generalized inverse. The s...
A nonnegative matrix is called regular if it admits a nonnegative generalized inverse. The structure...
summary:A real matrix $A$ is a G-matrix if $A$ is nonsingular and there exist nonsingular diagonal m...
AbstractIn this paper, we provide some characterizations of inverse M-matrices with special zero pat...
AbstractIn this paper, we provide some characterizations of inverse M-matrices with special zero pat...
AbstractWe apply the previously proved equivalence of four models to present new characterizations o...
AbstractIf A is an n × n sign pattern matrix, then Q(A) denotes the set of all real n×n matrices B s...
AbstractWe consider Z-matrices and inverse Z-matrices, i.e. those nonsingular matrices whose inverse...
In this paper, we consider matrices whose inverses are tridiagonal Z-matrices. Based on a characteri...
AbstractA result of Johnson, Leighton, and Robinson characterizing sign patterns of real matrices wi...
We use weighted directed graphs to introduce a class of nonnegative matrices which, under a simple c...
AbstractWe use weighted directed graphs to introduce a class of nonnegative matrices which, under a ...
AbstractTridiagonal or Jacobi matrices arise in many diverse branches of mathematics and have been s...
AbstractRecently, a classification of matrices of class Z was introduced by Fiedler and Markham. Thi...
AbstractIt is interesting that inverse M-matrices are zero-pattern (power) invariant. The main contr...
AbstractA nonnegative matrix is called regular if it admits a nonnegative generalized inverse. The s...
A nonnegative matrix is called regular if it admits a nonnegative generalized inverse. The structure...
summary:A real matrix $A$ is a G-matrix if $A$ is nonsingular and there exist nonsingular diagonal m...