𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the construction of certain Hadamard designs

✍ Scribed by Marion E. Kimberley


Publisher
Springer-Verlag
Year
1971
Tongue
French
Weight
1016 KB
Volume
119
Category
Article
ISSN
0025-5874

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


A note on the construction of certain BI
✍ R.N. Mohan πŸ“‚ Article πŸ“… 1980 πŸ› Elsevier Science 🌐 English βš– 186 KB

In this note a method of construction of certain combinatorial designs is defined. This gives the solution of (121, 132, 60, 55, 27) which is marked as unknown by Kageyama [l].

Bounds on the number of Hadamard designs
✍ Clement Lam; Sigmund Lam; Vladimir D. Tonchev πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 183 KB

## Abstract A new lower bound on the number of non‐isomorphic Hadamard symmetric designs of even order is proved. The new bound improves the bound on the number of Hadamard designs of order 2__n__ given in [12] by a factor of 8__n__β€‰βˆ’β€‰1 for every odd __n__ > 1, and for every even __n__ such that 4_

On Xia's Construction of Hadamard Differ
✍ Qing Xiang; Yu Qing Chen πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 235 KB

In this paper, we present a new way of viewing Xia's construction of Hadamard difference sets. Based on this new point of view, we give a character theoretic proof for Xia's construction. Also we point out a connection between the construction and projective three-weight codes.

The excess of Hadamard matrices and opti
✍ Nikos Farmakis; Stratis Kounias πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 542 KB

Hadamard matrices of order n with maximum excess o(n) are constructed for n = 40, 44, 48, 52, 80, 84. The results are: o(40)= 244, o(44)= 280, o(48)= 324, o(52)= 364, o(80)= 704, 0(84) = 756. A table is presented listing the known values of o(n) 0< n ~< 100 and the corresponding Hadamard matrices ar