Abstract
An undirected graph Γ of valencyd and girth γ is called a (d, γ)-cage if its automorphism group acts transitively on the set of alls-paths in Γ ands≥(γ+1)/2. We discuss an elementary construction of two known families of cages which allows us to prove easily some facts about their automorphism groups. We give, for example, a new proof of the fact that the automorphism group ofSp 4(2n) contains elements which are not induced by ΓSp 4(2n).
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Weiss, R. Über Tuttes Cages. Monatshefte für Mathematik 83, 65–75 (1977). https://doi.org/10.1007/BF01303014
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DOI: https://doi.org/10.1007/BF01303014