AbstractA condition is provided which ensures that a class of (0, 1)-matrices with given row and column sum vectors must contain an asymmetric matrix
AbstractThis paper is concerned with (0, 1)-normal matrices. The main objective is to study the stru...
AbstractAsymptotics are obtained for the number of n × n symmetric non-negative integer matrices sub...
AbstractThis paper considers the existence of triangular matrices with specified row and column sums...
AbstractA condition is provided which ensures that a class of (0, 1)-matrices with given row and col...
AbstractLet s, t, m, n be positive integers such that sm=tn. Define N(s,t;m,n) to be the number of m...
AbstractIf the non-zero entries of a matrix S satisfy certain sum restrictions, then it is shown tha...
AbstractThis paper considers the existence of triangular matrices with specified row and column sums...
We investigate the number of symmetric matrices of nonnegative integers with zero diagonal such that...
AbstractWe generalize results of Ryser on (0, 1)-matrices without triangles, 3 × 3 submatrices with ...
AbstractWe study the class U2(R,S) of all (0, 1, 2)-matrices with a prescribed row sum vector R and ...
AbstractLet m and n be positive integers, and let R=(r1,r2,…,rm) and S=(s1,s2,…,sn) be non-negative ...
AbstractIn this note we give an elementary proof of a theorem that characterizes those three-dimensi...
We present additional equivalent conditions on the existence of a 0 1 symmetric matrix with given ro...
We present additional equivalent conditions on the existence of a 0 1 symmetric matrix with given ro...
AbstractThis paper explicitly constructs non-singular 0-1 matrices of dimensions n with constant row...
AbstractThis paper is concerned with (0, 1)-normal matrices. The main objective is to study the stru...
AbstractAsymptotics are obtained for the number of n × n symmetric non-negative integer matrices sub...
AbstractThis paper considers the existence of triangular matrices with specified row and column sums...
AbstractA condition is provided which ensures that a class of (0, 1)-matrices with given row and col...
AbstractLet s, t, m, n be positive integers such that sm=tn. Define N(s,t;m,n) to be the number of m...
AbstractIf the non-zero entries of a matrix S satisfy certain sum restrictions, then it is shown tha...
AbstractThis paper considers the existence of triangular matrices with specified row and column sums...
We investigate the number of symmetric matrices of nonnegative integers with zero diagonal such that...
AbstractWe generalize results of Ryser on (0, 1)-matrices without triangles, 3 × 3 submatrices with ...
AbstractWe study the class U2(R,S) of all (0, 1, 2)-matrices with a prescribed row sum vector R and ...
AbstractLet m and n be positive integers, and let R=(r1,r2,…,rm) and S=(s1,s2,…,sn) be non-negative ...
AbstractIn this note we give an elementary proof of a theorem that characterizes those three-dimensi...
We present additional equivalent conditions on the existence of a 0 1 symmetric matrix with given ro...
We present additional equivalent conditions on the existence of a 0 1 symmetric matrix with given ro...
AbstractThis paper explicitly constructs non-singular 0-1 matrices of dimensions n with constant row...
AbstractThis paper is concerned with (0, 1)-normal matrices. The main objective is to study the stru...
AbstractAsymptotics are obtained for the number of n × n symmetric non-negative integer matrices sub...
AbstractThis paper considers the existence of triangular matrices with specified row and column sums...
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