On the Reduction of Associate Classes for Certain PBIB Designs

DOI10.1214/aoms/1177692385zbMath0251.05014OpenAlexW1966994728MaRDI QIDQ5663881

Sanpei Kageyama

Publication date: 1972

Published in: The Annals of Mathematical Statistics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1214/aoms/1177692385

Mathematics Subject Classification ID

Combinatorial aspects of block designs (05B05) Combinatorial aspects of matrices (incidence, Hadamard, etc.) (05B20) Statistical block designs (62K10) General commutative ring theory (13A99)

Related Items (6)

Reduction of the number of associate classes of hypercubic association schemes ⋮ Partially efficiency balanced designs ⋮ Note on the reduction of associate classes for PBIB designs ⋮ Some families of group divisible designs ⋮ Merging the first and third classes in bipartite distance-regular graphs ⋮ Three methods of constructing pbib designs

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