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Constant Weight Codes and Group Divisible Designs

✍ Scribed by Simon Blake-Wilson; Kevin T. Phelps

Book ID: 110261956
Publisher: Springer
Year: 1999
Tongue: English
Weight: 231 KB
Volume: 16
Category: Article
ISSN: 0925-1022
DOI: 10.1023/a:1008318207622

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## Abstract We obtain new conditions on the existence of a square matrix whose Gram matrix has a block structure with certain properties, including D‐optimal designs of order $n\equiv 3 \pmod 4$, and investigate relations to group divisible designs. We also find a matrix with large determinant for