Hurwitz groups as monodromy groups of dessins: several examples
Algebraic Geometry
2020-12-15 v1 Group Theory
Abstract
We present a number of examples to illustrate the use of small quotient dessins as substitutes for their often much larger and more complicated Galois (minimal regular) covers. In doing so we employ several useful group-theoretic techniques, such as the Frobenius character formula for counting triples in a finite group, pointing out some common traps and misconceptions associated with them. Although our examples are all chosen from Hurwitz curves and groups, they are relevant to dessins of any type.
Cite
@article{arxiv.2012.07107,
title = {Hurwitz groups as monodromy groups of dessins: several examples},
author = {Gareth A. Jones and Alexander K. Zvonkin},
journal= {arXiv preprint arXiv:2012.07107},
year = {2020}
}
Comments
32 pages, 16 figures