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The degrees of the orientation-preserving automorphism groups of toroidal maps and hypermaps

par Fernandes, Maria Elisa;Piedade, Claudio Alexandre
Référence Journal of algebraic combinatorics, 61, 4, page (1-18), 55
Publication Publié, 2025-06-01

Article révisé par les pairs

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Résumé :

Abstract This paper is an exploration of the faithful transitive permutation representations of the orientation-preserving automorphisms groups of orientably-regular toroidal maps and hypermaps. The main theorems of this paper list all possible degrees of these specific groups. This extends prior accomplishments of the authors, wherein their focus was confined to the study of the automorphisms groups of toroidal regular maps and hypermaps. In addition, the authors bring out the recently developed GAP package corefreesub that can be used to find faithful transitive permutation representations of any group. With the aid of this powerful tool, the authors show how Schreier coset graphs of the automorphism groups of toroidal maps and hypermaps can be easily constructed.