Equivalence classes of dessins d'enfants with two vertices
Number Theory
2022-09-19 v1 Algebraic Geometry
Combinatorics
Abstract
Let be a positive integer. For any positive integer and any positive divisor of , we enumerate the equivalence classes of dessins d'enfants with edges, faces and two vertices whose automorphism groups are cyclic of order . Further, for any non-negative integer , we enumerate the equivalence classes of dessins with edges, faces of degree with , and two vertices, whose automorphism groups are cyclic of order . Our arguments are essentially based upon a natural one-to-one correspondence of the equivalence classes of all dessins with edges to the equivalence classes of all pairs of permutations with components generating transitive subgroups of the symmetric group of degree .
Keywords
Cite
@article{arxiv.2209.07719,
title = {Equivalence classes of dessins d'enfants with two vertices},
author = {Madoka Horie},
journal= {arXiv preprint arXiv:2209.07719},
year = {2022}
}
Comments
32 pages, 2 figures