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Block Squares
Author(s) -
Gohlisch Claudia,
Koch Helmut,
Nebe Gabriele
Publication year - 2002
Publication title -
mathematische nachrichten
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 50
eISSN - 1522-2616
pISSN - 0025-584X
DOI - 10.1002/1522-2616(200207)241:1<73::aid-mana73>3.0.co;2-s
Subject(s) - block (permutation group theory) , mathematics , square (algebra) , arithmetic , least squares function approximation , combinatorics , statistics , geometry , estimator
A block square is a certain 1–block design. We show that there are exactly two block squares in which each block consists of 5 elements and each element is contained in 6 blocks.