Balanced incomplete block designs and related designs

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Remarks on Balanced Incomplete Block Designs

Proof. Assume the hypothesis and the falsity of either conclusion. Construct matrix A of 2x + 2 rows and 4x+4 columns, with entries + 1 and — 1. The first column contains exclusively +1, and the second column — 1. Set up one-to-one correspondences between rows of A and elements of D ; between columns other than the first two of A and blocks of D. Enter +1 if the element is contained in the bloc...

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ژورنال

عنوان ژورنال: Discrete Mathematics

سال: 1975

ISSN: 0012-365X

DOI: 10.1016/0012-365x(75)90040-0