𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A note on orthogonal sets of hypercubes

✍ Scribed by Anthony B. Evans


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
105 KB
Volume
5
Category
Article
ISSN
1063-8539

No coin nor oath required. For personal study only.

✦ Synopsis


Mutually orthogonal sets of hypercubes are higher dimensional generalizations of mutually orthogonal sets of Latin squares. For Latin squares, it is well known that the Cayley table of a group of order n is a Latin square, which has no orthogonal mate if n is congruent to 2 modulo 4. We will prove an analogous result for hypercubes.


πŸ“œ SIMILAR VOLUMES


The geometry of sets of orthogonal frequ
✍ V. C. Mavron; T. P. McDonough; Gary L. Mullen πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 155 KB

## Abstract We extend the notion of a framed net, introduced by D. Jungnickel, V. C. Mavron, and T. P. McDonough, J Combinatorial Theory A, 96 (2001), 376–387, to that of a __d__‐framed net of type β„“, where __d__ β‰₯ 2 and 1 ≀ ℓ ≀ __d__‐1, and we establish a correspondence between __d__‐framed nets o

A Note on Difference Sets
✍ Hikoe Enomoto; Mariko Hagita; Makoto Matsumoto πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 234 KB

Let D be a (v, k, \*)-difference set in a group G. Assume that G has a normal subgroup N such that GΓ‚N is cyclic or nearly cyclic. Under the self-conjugacy assumption on exp(GΓ‚N), we shall give bounds on |N| and \*. The theorem is applicable to a wider variety of parameters for groups, not necessari

A note on cyclic difference sets
✍ Peter M. Neumann πŸ“‚ Article πŸ“… 1974 πŸ› John Wiley and Sons 🌐 English βš– 93 KB πŸ‘ 2 views
A note on cliques and independent sets
✍ Entringer, Roger C.; Goddard, Wayne; Henning, Michael A. πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 58 KB πŸ‘ 2 views

For integers m, n β‰₯ 2, let f (m, n) be the minimum order of a graph where every vertex belongs to both a clique of cardinality m and an independent set of cardinality n. We show that f (m, n) = ( √ m -1 + √ n -1) 2 .

Markovβ€²s Inequality and Zeros of Orthogo
✍ A. Jonsson πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 378 KB

Zeros of orthogonal polynomials defined with respect to general measures are studied. It is shown that a certain estimate for the minimal distance between zeros holds if and only if the support \(F\) of the measure satisfies a homogeneity condition and Markov's inequality holds on \(F\). C 1994 Acad

Note on large sets of infinite steiner s
✍ Peter J. Cameron πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 250 KB πŸ‘ 1 views

Large sets of Steiner systems s ( t , k , n ) exist for all finite t and k with t < k and all infinite n. The vector space analogues exist over a field F for all finite t and k with f < R provided that either v or F is infinite, and n 1 2k -t + 1. This inequality is best possible. o 1995 John Wiley