## Abstract The obvious necessary conditions for the existence of a nested Steiner triple system of order __v__ containing a nested subsystem of order __w__ are __v__ββ₯β3__w__β+β4 and __v__ββ‘βwββ‘β1 (mod 6). We show that these conditions are also sufficient. Β© 2004 Wiley Periodicals, Inc.
On the doyen-wilson theorem for m-cycle systems
β Scribed by Darryn E. Bryant; C. A. Rodger
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 901 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1063-8539
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
In this article we consider the embedding of mβcycle systems of order u in mβcycle systems of order v when m is odd. When u and v are 1 or m (mod 2__m__) we completely settle this problem, except possibly for the smallest such embedding in some cases when u β‘ v β‘ m (mod 2__m__). In particular, there are no exceptions if m β {7,9}, so the generalization of the DoyenβWilson Theorem is now settled for all odd m with m β€ 9. Β© 1994 John Wiley & Sons, Inc.
π SIMILAR VOLUMES
In this article necessary and sufficient conditions are found for a minimum covering of Km with triples to be embedded in a minimum covering of Kn with triples.
Let Z,(v) denote the set of integers k for which a pair of m-cycle systems of K , exist, on the same vertex set, having k common cycles. Let J,(v) = { 0,1,2, . . . ,t, -2, t,} where t , = v(vl ) / 2 m . In this article, if 2mn + x is an admissible order of an m-cycle system, we investigate when Zm(2
## Abstract In this paper we prove a Tauberian type theorem for the space __L__ $ ^1 \_{\bf m} $(H~__n__~ ). This theorem gives sufficient conditions for a __L__ $ ^1 \_{\bf 0} $(H~__n__~ ) submodule __J__ β __L__ $ ^1 \_{\bf m} $(H~__n__~ ) to make up all of __L__ $ ^1 \_{\bf m} $(H~__n__~ ). As a