





This page contains new results in the area of
combinatorial designs that have occurred since the publication of the
Handbook of Combinatorial Designs, Second Edition in November 2006.
The results here would be contained in Part V of the Handbook.
Last edited 8/25/07
Page 277, Table 1.51. Skew-type Hadamard matrices have been constructed for orders 4n with n = 47, 97, 109, 145, 247. (References: arXiv:0704.0640v1 [math.CO] 4 Apr 2007 and arXiv:0706.1973v1 [math.CO] 13 Jun 2007) D.Z. Djokovic (djokovic@hypatia.math.uwaterloo.ca). August 2007.
Page 278, Table 1.53. A Hadamard matrix of order 764 = 4 x 191 has been constructed. (Reference: arXiv:math.CO/0703312v1 11 Mar 2007. To appear in Combinatorica) D.Z. Djokovic (djokovic@hypatia.math.uwaterloo.ca). August 2007.
Page 318, Remark 8.13. There exist PCS(50,2). (Reference: arXiv:0707.2173v1 [math.CO] 14 Jul 2007) D.Z. Djokovic (djokovic@hypatia.math.uwaterloo.ca). August 2007.
Page 319, Table 8.17. Table 8.17 is reduced to just one undecided case, namely: p=3 and n=48. (Reference: arXiv:0708.0053v1 [cs.IT] 1 Aug 2007). D.Z. Djokovic (djokovic@hypatia.math.uwaterloo.ca). August 2007.
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