Note on Certain Combinatorial Designs

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Oct 1962Publisher:JSTORJournal:Proceedings of the American Mathematical Society, volume 13, page 682 (issn: 0002-9939,

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Authors: Hsu, N. C.;

doi: 10.2307/2034152 , 10.1090/s0002-9939-1962-0141606-3

Note on Certain Combinatorial Designs

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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

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