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A new upper bound on the parameters of quasi-symmetric designs

✍ Scribed by Ghosh, Debashis; Dey, Lakshmi Kanta


Book ID
122936899
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
127 KB
Volume
113
Category
Article
ISSN
0020-0190

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πŸ“œ SIMILAR VOLUMES


A short proof of a conjecture on quasi-s
✍ Rajendra M. Pawale; Sharad S. Sane πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 150 KB

Pawale, R.M. and S.S. Sane, A short p,oof of a conjecture on quasi-symmetric 2-designs, Discrete Mathematics 96 (1991) 71-74. It was conjettured by Sane and M.S. Shrikhande that the only nontrivial quasi-symmetric 3-design with the smaller block intersection number one is either the Witt 4-(23, 7,

New upper bounds on the minimum size of
✍ Iliya Bluskov; Heikki HΓ€mΓ€lΓ€inen πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 310 KB πŸ‘ 1 views

Let D = {B1 , B2 , . . . , B b } be a finite family of k-subsets (called blocks) of a vset X(v) = {1, 2, . . . , v} (with elements called points). Then D is a (v, k, t) covering design or covering if every t-subset of X(v) is contained in at least one block of D. The number of blocks, b, is the size