Counting 1-vertex Triangulations Of Oriented Surfaces
Roland Bacher, Alina Vdovina
Abstract
A 1-vertex triangulation of an oriented compact surface S of genus g is an embedded graph T⊂ S with a unique vertex such that all connected components of S T are triangles (adjacent to exactly 3 edges of T). This paper gives formulas enumerating such triangulations (up to equivalence) on an oriented surface of given genus. Une triangulation à un sommet d'une surface orientée compacte S de genre g est un graphe T⊂ S qui a un unique sommet et dont toutes les faces (composantes connexes de S T) sont des triangles (incidentes à trois arêtes de T). Cet article donne des formules permettant d'énumérer ces triangulations.
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