Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whose nontrivial minors are nonzero. In this paper we provide several properties of almost strictly sign regular rectangular matrices of maximal rank and analyze their QR factorization
AbstractAn m×n matrix A is sign regular if, for each k (1⩽k⩽min{m,n}), all k×k submatrices of A have...
AbstractAn n×n real matrix is called sign regular if, for each k (1⩽k⩽n), all its minors of order k ...
AbstractA square matrix A=(aij) is called m-banded if aij=0 for all |i-j|>m. Motivated by the result...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
AbstractThe class of nonsingular almost strictly totally positive matrices has been characterized [M...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
AbstractAn n×n real matrix is called sign regular if, for each k (1⩽k⩽n), all its minors of order k ...
AbstractAn n×m real matrix A is said to be totally positive (strictly totally positive) if every min...
AbstractThe class of nonsingular almost strictly totally positive matrices has been characterized [M...
AbstractAn m×n matrix A is sign regular if, for each k (1⩽k⩽min{m,n}), all k×k submatrices of A have...
AbstractAn n×n real matrix is called sign regular if, for each k (1⩽k⩽n), all its minors of order k ...
AbstractA square matrix A=(aij) is called m-banded if aij=0 for all |i-j|>m. Motivated by the result...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
Almost strictly sign regular matrices are sign regular matrices with a special zero pattern and whos...
AbstractThe class of nonsingular almost strictly totally positive matrices has been characterized [M...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify so...
AbstractAn n×n real matrix is called sign regular if, for each k (1⩽k⩽n), all its minors of order k ...
AbstractAn n×m real matrix A is said to be totally positive (strictly totally positive) if every min...
AbstractThe class of nonsingular almost strictly totally positive matrices has been characterized [M...
AbstractAn m×n matrix A is sign regular if, for each k (1⩽k⩽min{m,n}), all k×k submatrices of A have...
AbstractAn n×n real matrix is called sign regular if, for each k (1⩽k⩽n), all its minors of order k ...
AbstractA square matrix A=(aij) is called m-banded if aij=0 for all |i-j|>m. Motivated by the result...
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