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The twisted Grassmann
graph is the block graph of a design
Akihiro Munemasa and Vladimir D. Tonchev |
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Vol. 12 (2011), No. 1, 1–6
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Abstract |
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In this note, we show that the twisted Grassmann graph constructed by Van Dam and Koolen is the block graph of the design constructed by Jungnickel and Tonchev. We also show that the full automorphism group of the design is isomorphic to the full automorphism group that of the twisted Grassmann graph. |
Milestones
Received: 13 July 2009
Accepted: 3 September 2009
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Authors |
| Akihiro Munemasa | |
| Vladimir D. Tonchev | |
| Mathematical Sciences Michigan Technological University 1400 Townsend Drive Houghton, MI 49931-1295 United States |
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