summary:New proofs of two previously published theorems relating nonsingularity of interval matrices to $P$-matrices are given
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
It is proved that regularity of an interval matrix implies singularity of two related interval matri...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
summary:New proofs of two previously published theorems relating nonsingularity of interval matrices...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
AbstractA new nonsingularity criterion for matrices is derived. It improves the Levy-Desplanques the...
AbstractWe use previous results on complementary basic matrices to introduce a rather wide class of ...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
AbstractIn this paper, nonsingular totally nonpositive matrices are studied and new characterization...
AbstractGroß and Trenkler [SIAM J. Matrix Anal. Appl. 21 (1999) 390] pointed out that if a differenc...
AbstractGroß and Trenkler 1 pointed out that if a difference of idempotent matrices P and Q is nonsi...
AbstractWe consider intervals of matrices with respect to the usual entrywise partial ordering. Nece...
AbstractWe extend to nonsingular M-matrices the following result by G. Sierksma: If S is a nonsingul...
This paper describes and analyzes nonsingularity conditions of saddle point matrices with two vector...
We consider the class of the totally nonnegative matrices, i.e., the matrices having all their minor...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
It is proved that regularity of an interval matrix implies singularity of two related interval matri...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
summary:New proofs of two previously published theorems relating nonsingularity of interval matrices...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
AbstractA new nonsingularity criterion for matrices is derived. It improves the Levy-Desplanques the...
AbstractWe use previous results on complementary basic matrices to introduce a rather wide class of ...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
AbstractIn this paper, nonsingular totally nonpositive matrices are studied and new characterization...
AbstractGroß and Trenkler [SIAM J. Matrix Anal. Appl. 21 (1999) 390] pointed out that if a differenc...
AbstractGroß and Trenkler 1 pointed out that if a difference of idempotent matrices P and Q is nonsi...
AbstractWe consider intervals of matrices with respect to the usual entrywise partial ordering. Nece...
AbstractWe extend to nonsingular M-matrices the following result by G. Sierksma: If S is a nonsingul...
This paper describes and analyzes nonsingularity conditions of saddle point matrices with two vector...
We consider the class of the totally nonnegative matrices, i.e., the matrices having all their minor...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...
It is proved that regularity of an interval matrix implies singularity of two related interval matri...
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix interva...