Maps and Half-transitive Graphs of Valen
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D MaruΕ‘iΔ; R Nedela
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Article
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1998
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Elsevier Science
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English
β 167 KB
A subgroup G of automorphisms of a graph X is said to be 1 2 -transitive if it is vertex-and edge-but not arc-transitive. The graph X is said to be 1 2 -transitive if Aut X is 1 2 -transitive. The correspondence between regular maps and 1 2 -transitive group actions on graphs of valency 4 is studied