Some transitive Steiner triple systems of Bagchi and Bagchi
โ Scribed by J.D. Key; F.D. Shobe
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 388 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0378-3758
No coin nor oath required. For personal study only.
โฆ Synopsis
We show that the class of Steiner triple systems on 3 d points defined in Bagchi and Bagchi (J. Combin. Theory Ser. A 52 (1989) 51-61) closely resemble the systems defined through the designs of points and lines of an affine geometry of dimension d over F3 in that they have a rich collection of hyperplanes and subspaces, all of which are designs of the same Bagchi-Bagchi type. The ternary codes and the automorphism groups of these designs can also be fully described.
๐ SIMILAR VOLUMES
In a Steiner triple system STS(v) = (V, B), for each pair {a, b} โ V, the cycle graph G a,b can be defined as follows. The vertices of G a,b are V \ {a, b, c} where {a, b, c} โ B. {x, y} is an edge if either {a, x, y} or {b, x, y} โ B. The Steiner triple system is said to be perfect if the cycle gra
By adopting a functional viewpoint of Mendelsohn and Steiner triple systems, questions of continuity are investigated. The main result is that at most one section ofa Steiner triple system defined on the real line can be continuous. Applying the concept of continuity to finite systems a complete cha
A Steiner triple system of order n (STS(n)) is said to be embeddable in an orientable surface if there is an orientable embedding of the complete graph Kn whose faces can be properly 2-colored (say, black and white) in such a way that all black faces are triangles and these are precisely the blocks
The code over a finite field F, of a design D is the space spanned by the incidence vectors of the blocks. It is shown here that if D is a Steiner triple system on v points, and if the integer then the ternary code C of contains a subcode that can be shortened to the ternary generalized Reed-Muller