Geodesic
On the classification of distance-transitive orbital graphs of overgroups of the Jevons group
Prikladnaya Diskretnaya Matematika. Supplement, no. 9 (2016), pp. 16-18.

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The Jevons group is the exponential group $S_2\uparrow S_n$. It is generated by the $(n\times n)$-matrices over $\operatorname{GF}(2)$ and the translation group on the $n$-dimensional vector space $V_n$ over $\operatorname{GF}(2)$. For a permutation group $G$ on $V_n$ being an overgraph of $S_2\uparrow S_n$, an orbital of $G$ is an orbit of $G$ in its natural action on $V_n\times V_n$. The orbital graph associated with an orbital $\Gamma$ is the graph with the vertex set $V_n$ and the edge set $\Gamma$. In this paper, we classify distance-transitive orbital graphs of overgroups of the Jevons group $S_2\uparrow S_n$ and show that some of them are isomorphic to the following graphs: the complete graph $K_{2^n}$, the complete bipartite graph $K_{2^{n-1},2^{n-1}}$, the halved $(n+1)$-cube, the folded $(n+1)$-cube, alternating forms graphs, the Taylor graph, the Hadamard graph.
Keywords: orbital graph, distance-transitive graph, Hamming graph.
Mots-clés : Jevons group 
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B. A. Pogorelov; M. A. Pudovkina. On the classification of distance-transitive orbital graphs of overgroups of the Jevons group. Prikladnaya Diskretnaya Matematika. Supplement, no. 9 (2016), pp. 16-18. http://geodesic.mathdoc.fr/item/PDMA_2016_9_a5/

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