AbstractA Hadamard matrix H of order 16t2 is constructed for all t for which there is a Hadamard matrix of order 4t, in such a way that each row of H contains exactly 8t2 + 2t ones. As a consequence a new method of constructing the symmetric block designs with parameters (16t2, 8t2 + 2t, 4t2 + 2t) for all t for which there is a Hadamard matrix of order 4t is given
AbstractThe first infinite families of symmetric designs were obtained from finite projective geomet...
AbstractIt was shown by Singhi that there are 21 nonisomorphic block designs BD (10, 5; 18, 9, 4) wh...
AbstractA square matrix with entries ± 1 is called a modular Hadamard matrix if the inner product of...
AbstractA Hadamard matrix H of order 16t2 is constructed for all t for which there is a Hadamard mat...
AbstractWe establish, among other things, a family of symmetric block designs with parameters (v, k,...
The existence of Szekeres difference sets, X and Y, of size 2f with y E Y = -y E Y, where q = 4f + 1...
A symmetric 2-(324, 153, 72) design is constructed that admits a tactical decomposition into 18 poin...
A symmetric 2-(324, 153, 72) design is constructed that admits a tactical decomposition into 18 poin...
A symmetric 2-(324, 153, 72) design is constructed that admits a tactical decomposition into 18 poin...
AbstractWe prove that if there exist Hadamard matrices of order 4m, 4n, 4p, and 4q then there exists...
AbstractA block b of a Hadamard design is called a good block if the symmetric difference b + b1 is ...
AbstractGiven any k vectors of dimension nk which are mutually orthogonal, it is well known that thi...
AbstractIn this paper all the so-called checkered Hadamard matrices of order 16 are determined (i.e....
AbstractIn Hadamard matrices of orders 8t + 4, there are usually four rows which agree on exactly on...
iv, 64 leaves : ill., map ; 29 cm.Our main aim in this thesis is to study and search for orthogonal ...
AbstractThe first infinite families of symmetric designs were obtained from finite projective geomet...
AbstractIt was shown by Singhi that there are 21 nonisomorphic block designs BD (10, 5; 18, 9, 4) wh...
AbstractA square matrix with entries ± 1 is called a modular Hadamard matrix if the inner product of...
AbstractA Hadamard matrix H of order 16t2 is constructed for all t for which there is a Hadamard mat...
AbstractWe establish, among other things, a family of symmetric block designs with parameters (v, k,...
The existence of Szekeres difference sets, X and Y, of size 2f with y E Y = -y E Y, where q = 4f + 1...
A symmetric 2-(324, 153, 72) design is constructed that admits a tactical decomposition into 18 poin...
A symmetric 2-(324, 153, 72) design is constructed that admits a tactical decomposition into 18 poin...
A symmetric 2-(324, 153, 72) design is constructed that admits a tactical decomposition into 18 poin...
AbstractWe prove that if there exist Hadamard matrices of order 4m, 4n, 4p, and 4q then there exists...
AbstractA block b of a Hadamard design is called a good block if the symmetric difference b + b1 is ...
AbstractGiven any k vectors of dimension nk which are mutually orthogonal, it is well known that thi...
AbstractIn this paper all the so-called checkered Hadamard matrices of order 16 are determined (i.e....
AbstractIn Hadamard matrices of orders 8t + 4, there are usually four rows which agree on exactly on...
iv, 64 leaves : ill., map ; 29 cm.Our main aim in this thesis is to study and search for orthogonal ...
AbstractThe first infinite families of symmetric designs were obtained from finite projective geomet...
AbstractIt was shown by Singhi that there are 21 nonisomorphic block designs BD (10, 5; 18, 9, 4) wh...
AbstractA square matrix with entries ± 1 is called a modular Hadamard matrix if the inner product of...
DOI
Add to ORKG