and v 15, a 3-chromatic Steiner triple system of order v all of whose 3-colorings are equitable. 1997 Academic Press ## 1. Introduction A Steiner triple system of order v (briefly STS(v)) is a pair (X, B), where X is a v-element set and B is a collection of 3-subsets of X (triples), such that eve
Ternary codes of steiner triple systems
β Scribed by J. D. Key
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 339 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1063-8539
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β¦ Synopsis
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 code R ~~( 2 ( d l), d ) of length 3d. If v = 3d and d 2 2, then C* R F ~( ~, d ) C R ~~( 2 ( d -I), d ) C .
π SIMILAR VOLUMES
Two Steiner triple systems, S 1 VY B 1 and S 2 VY B 2 , are orthogonal (S 1 c S 2 ) if B 1 B 2 Y and if fuY vg T fxY yg, uvwY xyw P B 1 , uvsY xyt P B 2 then s T t. The solution to the existence problem for orthogonal Steiner triple systems, (OSTS) was a major accomplishment in design theory. Two or
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
## Abstract In this paper, we present a conjecture that is a common generalization of the DoyenβWilson Theorem and Lindner and Rosa's intersection theorem for Steiner triple systems. Given __u__, __v__ β‘ 1,3 (mod 6), __u__ < __v__ < 2__u__β+β 1, we ask for the minimum __r__ such that there exists a
## Abstract We consider two wellβknown constructions for Steiner triple systems. The first construction is recursive and uses an STS(__v__) to produce a nonβresolvable STS(2__v__β+β1), for __v__ββ‘β1 (mod 6). The other construction is the Wilson construction that we specify to give a nonβresolvable
A Steiner triple system S is a C-ubiquitous (where C is a configuration) if every line of S is contained in a copy of C, and is n-ubiquitous if it is C-ubiquitous for every n-line configuration C. We determine the spectrum of 4-ubiquitous Steiner triple systems as well as the spectra of C-ubiquitous