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2002

Kirkman triple systems of order 21 with nontrivial automorphism group

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Kirkman triple systems of order 21 with nontrivial automorphism group
There are 50,024 Kirkman triple systems of order 21 admitting an automorphism of order 2. There are 13,280 Kirkman triple systems of order 21 admitting an automorphism of order 3. Together with the 192 known systems and some simple exchange operations, this leads to a collection of
Myra B. Cohen, Charles J. Colbourn, Lee A. Ives, A
Added 22 Dec 2010
Updated 22 Dec 2010
Type Journal
Year 2002
Where MOC
Authors Myra B. Cohen, Charles J. Colbourn, Lee A. Ives, Alan C. H. Ling
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