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December, 1952 Some Relations among the Blocks of Symmetrical Group Divisible Designs
W. S. Connor
Ann. Math. Statist. 23(4): 602-609 (December, 1952). DOI: 10.1214/aoms/1177729339


It is well known that if every pair of treatments in a symmetrical balanced incomplete block design occurs in $\lambda$ blocks, then every two blocks of the design have $\lambda$ treatments in common. In this paper it will be shown that a somewhat similar property holds for symmetrical group divisible designs. In the course of the investigation there will be introduced certain matrices which are of intrinsic interest.


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W. S. Connor. "Some Relations among the Blocks of Symmetrical Group Divisible Designs." Ann. Math. Statist. 23 (4) 602 - 609, December, 1952.


Published: December, 1952
First available in Project Euclid: 28 April 2007

zbMATH: 0049.09904
MathSciNet: MR51205
Digital Object Identifier: 10.1214/aoms/1177729339

Rights: Copyright © 1952 Institute of Mathematical Statistics

Vol.23 • No. 4 • December, 1952
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