Add to ORKGIn this paper we consider a particular type of partition of Zn, called H-partition and obtain a necessary and sufficient condition for existence of a set of four symmetric circulant matrices for a Hadamard matrix of order 4n in terms of such partitions when n odd. 1
AbstractOnly a finite number of Hadamard matrices of Williamson type are known so far; it has been c...
Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-H...
A new method of generating Williamson type Matrices A, B, C, D is described such that (i) A, B, C, D...
AbstractAll circulant and symmetric (1, -1) matrices A, B, C, D of order m=33 such that A2+B2+C2+D2=...
Some matrices of Williamson type Recent advances in the construction of Hadamard matrices have depen...
AbstractWhenever there exists a quasi-skew Hadamard matrix of order 4m and (4n−1, k, m−n+k) and (4n−...
AbstractA construction is given of a very special class of Hadamard matrices. This yields Hadamard m...
We consider and compare methods for computer construction of variously structured plug-in matrices (...
We consider and compare methods for computer construction of variously structured plug-in matrices (...
On Hadamard matrices Recent advances in the construction of Hadamard matrices have depended on the e...
AbstractIn this paper a new proof is given of the following theorem of Turyn: Let q = 2n − 1 be a pr...
Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-H...
AbstractNonequivalent Williamson matrices (always with symmetric circulant blocks) of indicated orde...
We continue our systematic search for symmetric Hadamard matrices based on the so called propus cons...
AbstractAll circulant and symmetric (1, -1) matrices A, B, C, D of order m=33 such that A2+B2+C2+D2=...
AbstractOnly a finite number of Hadamard matrices of Williamson type are known so far; it has been c...
Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-H...
A new method of generating Williamson type Matrices A, B, C, D is described such that (i) A, B, C, D...
AbstractAll circulant and symmetric (1, -1) matrices A, B, C, D of order m=33 such that A2+B2+C2+D2=...
Some matrices of Williamson type Recent advances in the construction of Hadamard matrices have depen...
AbstractWhenever there exists a quasi-skew Hadamard matrix of order 4m and (4n−1, k, m−n+k) and (4n−...
AbstractA construction is given of a very special class of Hadamard matrices. This yields Hadamard m...
We consider and compare methods for computer construction of variously structured plug-in matrices (...
We consider and compare methods for computer construction of variously structured plug-in matrices (...
On Hadamard matrices Recent advances in the construction of Hadamard matrices have depended on the e...
AbstractIn this paper a new proof is given of the following theorem of Turyn: Let q = 2n − 1 be a pr...
Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-H...
AbstractNonequivalent Williamson matrices (always with symmetric circulant blocks) of indicated orde...
We continue our systematic search for symmetric Hadamard matrices based on the so called propus cons...
AbstractAll circulant and symmetric (1, -1) matrices A, B, C, D of order m=33 such that A2+B2+C2+D2=...
AbstractOnly a finite number of Hadamard matrices of Williamson type are known so far; it has been c...
Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-H...
A new method of generating Williamson type Matrices A, B, C, D is described such that (i) A, B, C, D...