𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Self-converse Mendelsohn designs with block size 4t + 2

✍ Scribed by Qingde Kang


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
603 KB
Volume
7
Category
Article
ISSN
1063-8539

No coin nor oath required. For personal study only.

✦ Synopsis


A Mendelsohn design MD(v, k, Ξ») is a pair (X, B) where X is a v-set together with a collection B of cyclic k-tuples from X such that each ordered pair from X, as adjacent entries, is contained in exactly Ξ»k-tuples of B.

The existence of SCMD(v, 3, Ξ») and SCMD(v, 4, 1) has been settled by us. In this article, we will investigate the existence of SCMD(v, 4t + 2, 1). In particular, when 2t + 1 is a prime power, the existence of SCMD(v, 4t + 2, 1) has been completely solved, which extends the existence results for MD(v, k, 1) as well.


πŸ“œ SIMILAR VOLUMES


Perfect Mendelsohn designs with equal-si
✍ F. E. Bennett; Zhang Xuebin πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 149 KB πŸ‘ 2 views

Let M = {m1 , m2 , . . . , m h } and X be a v-set (of points). A holey perfect Mendelsohn designs (briefly (v, k, Ξ») -HPMD), is a triple (X, H, B), where H is a collection of subsets of X (called holes) with sizes M and which partition X, and B is a collection of cyclic k-tuples of X (called blocks)

Splitting balanced incomplete block desi
✍ Beiliang Du πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 149 KB

## Abstract Splitting balanced incomplete block designs were first formulated by Ogata, Kurosawa, Stinson, and Saido recently in the investigation of authentication codes. This article investigates the existence of splitting balanced incomplete block designs, i.e., (__v__, 3__k__, Ξ»)‐splitting BIBD

Super-simple resolvable balanced incompl
✍ Xiande Zhang; Gennian Ge πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 166 KB

## Abstract The necessary conditions for the existence of a super‐simple resolvable balanced incomplete block design on __v__ points with block size __k__ = 4 and index Ξ» = 2, are that __v__ β‰₯ 16 and $v \equiv 4\; (\bmod\; {12})$. These conditions are shown to be sufficient. Β© 2006 Wiley Periodical

Simple 3-designs of PSL(2, 2n) with bloc
✍ Weixia Li; Hao Shen πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 156 KB πŸ‘ 1 views

## Abstract In this paper, we determine the number of the orbits of 7‐subsets of $X= {\rm GF}(2^n)\cup\{\infty\}$ with a fixed orbit length under the action of PSL(2, 2^__n__^). As a consequence, we determine the distribution of Ξ» for which there exists a simple 3‐(2^__n__^ + 1, 7, Ξ») design with P