AbstractWe characterize skew-symmetric {1,0,−1}-matrices with a certain combinatorial property. In particular, we exhibit several equivalent descriptions of this property. These results allow characterizations of unimodular orientations of the complete graph, of rank 2 chirotopes, and of a class of multipartite oriented graphs
We characterize the Smith form of skew-symmetric matrix polynomials over an arbitrary field $\F$, sh...
AbstractA property of unimodularity is introduced for antisymmetric integral matrices. It is satisfi...
We present a number of combinatorial characterizations of K-matrices. This extends a theorem of Fie...
AbstractThis paper presents a brief survey of some of the recent results on combinatorially symmetri...
AbstractIn [S. Oum, Rank-width and well-quasi-ordering of skew-symmetric or symmetric matrices, Line...
AbstractWe give a new characterization of skew Hadamard matrices of order n in terms of spectral dat...
AbstractTwo questions about the existence of structured matrices with given linesums and given zero–...
The study of eigenvalue list multiplicities of matrices with certain graphs has appeared in volumes ...
AbstractWe prove that every infinite sequence of skew-symmetric or symmetric matrices M1, M2, … over...
Abstract. We prove that every infinite sequence of skew-symmetric or symmetric matrices M1, M2,... o...
AbstractIt is shown that a sign-nonsingular skew-symmetric matrix of order 2n, n ⩾ 3, has at most 2(...
We characterize the Smith form of skew-symmetric matrix polynomials over an arbi-trary field F, show...
AbstractLet E be the set of symmetric matrices in which every entry is 0 or ±1 and each diagonal ent...
An n by n skew-symmetric type (−1, 1)-matrix K = [ki,j ] has 1’s on the main diagonal and ±1’s else...
AbstractFor any finite field F we determine the number of n by n matrices of skew-centrosymmetric fo...
We characterize the Smith form of skew-symmetric matrix polynomials over an arbitrary field $\F$, sh...
AbstractA property of unimodularity is introduced for antisymmetric integral matrices. It is satisfi...
We present a number of combinatorial characterizations of K-matrices. This extends a theorem of Fie...
AbstractThis paper presents a brief survey of some of the recent results on combinatorially symmetri...
AbstractIn [S. Oum, Rank-width and well-quasi-ordering of skew-symmetric or symmetric matrices, Line...
AbstractWe give a new characterization of skew Hadamard matrices of order n in terms of spectral dat...
AbstractTwo questions about the existence of structured matrices with given linesums and given zero–...
The study of eigenvalue list multiplicities of matrices with certain graphs has appeared in volumes ...
AbstractWe prove that every infinite sequence of skew-symmetric or symmetric matrices M1, M2, … over...
Abstract. We prove that every infinite sequence of skew-symmetric or symmetric matrices M1, M2,... o...
AbstractIt is shown that a sign-nonsingular skew-symmetric matrix of order 2n, n ⩾ 3, has at most 2(...
We characterize the Smith form of skew-symmetric matrix polynomials over an arbi-trary field F, show...
AbstractLet E be the set of symmetric matrices in which every entry is 0 or ±1 and each diagonal ent...
An n by n skew-symmetric type (−1, 1)-matrix K = [ki,j ] has 1’s on the main diagonal and ±1’s else...
AbstractFor any finite field F we determine the number of n by n matrices of skew-centrosymmetric fo...
We characterize the Smith form of skew-symmetric matrix polynomials over an arbitrary field $\F$, sh...
AbstractA property of unimodularity is introduced for antisymmetric integral matrices. It is satisfi...
We present a number of combinatorial characterizations of K-matrices. This extends a theorem of Fie...
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