DOIAbstract
AbstractA nonsingular n×n-matrix A=(aij) is called centrogonal if A−1=(an+1−i,n+1−j); it is called principally centrogonal if all leading principal submatrices of A are centrogonal. A characterization theorem for such matrices is proved
AbstractA nonsingular n×n-matrix A=(aij) is called centrogonal if A−1=(an+1−i,n+1−j); it is called principally centrogonal if all leading principal submatrices of A are centrogonal. A characterization theorem for such matrices is proved
AbstractTridiagonal or Jacobi matrices arise in many diverse branches of mathematics and have been s...
minding some classical definitions about matrices. Let A = [aij] be a matrix in Cn×m (whose ij-th el...
Note: This is paper is is poorly written and organized, so much so that I voluntarily withdrew it fr...
AbstractA nonsingular n×n-matrix A=(aij) is called centrogonal if A−1=(an+1−i,n+1−j); it is called p...
In this paper we give conditions on a matrix which guarantee that it is similar to a centrosymmetric...
AbstractThis paper defines a new type of matrix (which will be called a centro-invertible matrix) wi...
AbstractCentrohermitian and skew-centrohermitian matrices are defined in analogy to centrosymmetric ...
AbstractAn algorithm proposed recently by Melman reduces the costs of computing the product Ax with ...
[EN] This paper deals with generalized centro-invertible matrices introduced by the authors in Lebt...
AbstractThe elements in the group of centrosymmetric n×n permutation matrices are the extreme points...
We present here necessary and sufficient conditions for the invertibility of some circulant matrice...
AbstractLet CSRnxn={A=(aij)ϵRnxn|aij=an+1−j, i,j=1,2…, n} In this paper, we mainly discuss solving t...
AbstractEvery n×n generalized K-centrosymmetric matrix A can be reduced into a 2×2 block diagonal ma...
AbstractAn n by n matrix M over a (commutative) field F is said to be central if M − I has rank 1. W...
AbstractWe call A∈Mn(C) a condiagonalizable matrix if AR=AA¯ (or, which is the same, AL=A¯A) is diag...
AbstractTridiagonal or Jacobi matrices arise in many diverse branches of mathematics and have been s...
minding some classical definitions about matrices. Let A = [aij] be a matrix in Cn×m (whose ij-th el...
Note: This is paper is is poorly written and organized, so much so that I voluntarily withdrew it fr...
AbstractA nonsingular n×n-matrix A=(aij) is called centrogonal if A−1=(an+1−i,n+1−j); it is called p...
In this paper we give conditions on a matrix which guarantee that it is similar to a centrosymmetric...
AbstractThis paper defines a new type of matrix (which will be called a centro-invertible matrix) wi...
AbstractCentrohermitian and skew-centrohermitian matrices are defined in analogy to centrosymmetric ...
AbstractAn algorithm proposed recently by Melman reduces the costs of computing the product Ax with ...
[EN] This paper deals with generalized centro-invertible matrices introduced by the authors in Lebt...
AbstractThe elements in the group of centrosymmetric n×n permutation matrices are the extreme points...
We present here necessary and sufficient conditions for the invertibility of some circulant matrice...
AbstractLet CSRnxn={A=(aij)ϵRnxn|aij=an+1−j, i,j=1,2…, n} In this paper, we mainly discuss solving t...
AbstractEvery n×n generalized K-centrosymmetric matrix A can be reduced into a 2×2 block diagonal ma...
AbstractAn n by n matrix M over a (commutative) field F is said to be central if M − I has rank 1. W...
AbstractWe call A∈Mn(C) a condiagonalizable matrix if AR=AA¯ (or, which is the same, AL=A¯A) is diag...
AbstractTridiagonal or Jacobi matrices arise in many diverse branches of mathematics and have been s...
minding some classical definitions about matrices. Let A = [aij] be a matrix in Cn×m (whose ij-th el...
Note: This is paper is is poorly written and organized, so much so that I voluntarily withdrew it fr...
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