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.
Create a lesson
Related papers
Off-Diagonal Induced Ramsey Numbers
Bruno Andrades, Marcelo Campos, Rafael Filipe et al.
Largest Sperner families with bounded VC-dimension
Gennian Ge, Hanyu Wang, Zixiang Xu et al.
Proof of two conjectures on the log-concavity of partition ranks and cranks
Jianxi Mao, Wenle Shi, Bao-Xuan Zhu
The Exact Number of Pentagons in Book-Free Graphs
Wentao Hu
A family of symmetric counterexamples to the bent sum decomposition conjecture
Máté Róbert Kepes, Anita Kercsó-Molnár, Viczián András
Counting graphs admitting a strictly matched involution
Stephan Dominique Andres, Igor Režan