1. Note on certain combinatorial designs
- Author
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N. C. Hsu
- Subjects
Set (abstract data type) ,Combinatorics ,Combinatorial design ,Applied Mathematics ,General Mathematics ,Block (permutation group theory) ,Combinatorial explosion ,Combinatorial principles ,Mathematics - Abstract
Let v, ,i, n and Xn be integers such that v > 1> 1, n > 1 and Xn _1 By a (Xn, n, P,, v) tactical configuration is meant an arrangement of v objects into certain blocks such that each block consists of pi distinct objects and that each set of n objects occurs together in exactly AXn blocks [3, p. 264]. Any (Xn, n, P,, v) tactical configuration with n > 1 is a (Xn-1, n 1, ,l, v) tactical configuration where
- Published
- 1962
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