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#14 by Alois P. Heinz at Thu Sep 06 08:10:50 EDT 2018
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#13 by Jean-François Alcover at Thu Sep 06 08:03:43 EDT 2018
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Discussion
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| Thu Sep 06
| 08:10
| Alois P. Heinz: yes.
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#12 by Jean-François Alcover at Thu Sep 06 08:03:39 EDT 2018
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| NAME
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Normalized number of n^2 X n^2 SudukosSudokus.
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approved
editing
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#11 by Peter Luschny at Sat Apr 15 09:29:36 EDT 2017
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#10 by Joerg Arndt at Sat Apr 15 05:25:47 EDT 2017
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#9 by Michel Marcus at Fri Apr 14 14:53:35 EDT 2017
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Discussion
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| Sat Apr 15
| 05:25
| Joerg Arndt: Should be alright.
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#8 by Michel Marcus at Fri Apr 14 14:53:25 EDT 2017
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| REFERENCES
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Krasimir Yordzhev, On the Number of Disjoint Pairs of S-permutation Matrices, arXiv:12112:1628, 2012.
Krasimir Yordzhev, On the number of mutually disjoint pairs of S-permutation matrices, Discrete Mathematics 340 (2017) 1442-1448.
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| LINKS
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Krasimir Yordzhev, <a href="https://arxiv.org/abs/1211.1628">On the Number of Disjoint Pairs of S-permutation Matrices</a>, arXiv:12112:1628 [math.CO], 2012.
Krasimir Yordzhev, <a href="http://doi.org/10.1016/j.disc.2016.09.011">On the number of mutually disjoint pairs of S-permutation matrices</a>, Discrete Mathematics 340 (2017) 1442-1448.
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approved
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Discussion
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| Fri Apr 14
| 14:53
| Michel Marcus: Ok Neil ?
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#7 by N. J. A. Sloane at Fri Apr 14 13:49:08 EDT 2017
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#6 by N. J. A. Sloane at Fri Apr 14 13:49:05 EDT 2017
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| COMMENTS
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Note that although the two Yordzhev papers have similar titles, they are different papers.
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approved
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#5 by N. J. A. Sloane at Fri Apr 14 13:46:43 EDT 2017
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