The existence of a Bush-type Hadamard matrix of order 324 and two new infinite classes of symmetric designs

DOI10.1023/A:1011212922844zbMath0987.05031OpenAlexW208847948MaRDI QIDQ5947253

Zvonimir Janko, Hadi Kharaghani, Vladimir D. Tonchev

Publication date: 30 June 2002

Published in: Designs, Codes and Cryptography (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1023/a:1011212922844

zbMATH Keywords

strongly regular graphsymmetric designsprojective planeorthogonal Latin squaresbalanced generalized weighing matrixBush-type Hadamard matrix

Mathematics Subject Classification ID

Combinatorial aspects of block designs (05B05) Combinatorial aspects of matrices (incidence, Hadamard, etc.) (05B20)

Related Items (9)

Some Bush-type Hadamard matrices ⋮ Implementing Brouwer's database of strongly regular graphs ⋮ Switching for 2-designs ⋮ Some implications on amorphic association schemes ⋮ A recursive construction for new symmetric designs ⋮ The existence of a Bush-type Hadamard matrix of order 36 and two new infinite classes of symmetric designs ⋮ Decomposable symmetric designs ⋮ A series of Siamese twin designs ⋮ Recent progress in algebraic design theory

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