A classification of semisymmetric graphs of order 2pq |
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| Authors: | Shafei Du Mingyao Xu |
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| Institution: | 1. Department of Mathematics , Capital Normal University , Beijing, 100037, P.R.China;2. Department of Mathematics , Peking University , Beijing, 100871, P.R.China |
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| Abstract: | A simple undirected graph is said to be semisymmetric if it is regular and edge-transitive but not vertex-transitive. This paper gives a classification of semisymmetric graphs of order 2pq where p and q are distinct primes. It is shown that there are 143 examples of such graphs, 131 of which are biprimitive. |
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| Keywords: | Artin–Tits monoids Endomorphisms Fixed points Garside monoids Metrics |
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