✦ LIBER ✦

An infinite class of Williamson matrices

✍ Scribed by Richard J Turyn

Publisher: Elsevier Science
Year: 1972
Tongue: English
Weight: 149 KB
Volume: 12
Category: Article
ISSN: 0097-3165
DOI: 10.1016/0097-3165(72)90095-7

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

An infinite class of supplementary diffe

An infinite class of supplementary difference sets and Williamson matrices

✍ Ming-Yuan Xia; Gang Liu 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 280 KB

Some infinite classes of special William

Some infinite classes of special Williamson matrices and difference sets

✍ Ming-Yuan Xia 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 394 KB

An infinite class of Hadamard matrices o

An infinite class of Hadamard matrices of maximal excess

✍ H. Kharaghani 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 308 KB

We show that if there is a skew-Hadamard matrix of order m then there is an Hadamard matrix of order 4m2 -4m whose excess attains the maximum possible bound predicted by S. Kounias and N. Farmakis, On the excess of Hadamard matrices, Discrete Mathematics 68 (1988) 59-69. That is a(4m\* -4m) = 4(m -1

A special class of infinite matrice

✍ Gloria Olive 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 348 KB

A special class of Williamson matrices a

A special class of Williamson matrices and difference sets

✍ Richard J Turyn 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 235 KB

An infinite class of reach-preservable g

An infinite class of reach-preservable graphs

✍ Gagliardi, Daniel; Lewinter, Marty 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 42 KB 👁 1 views

for all w in G. G is called reach-preservable if each of its spanning trees contains at least one reachpreserving vertex. We show that K 2,n is reach-preservable. We show that a graph is bipartite if and only if given any pair of vertices, there exists a spanning tree in which both vertices a reach-