Abstract
In this paper, in the context of the "dessins d'enfants" theory, we give a combinatorial criterion for a plane tree to cover a tree from the classes of "chains" or "stars." We also discuss some applications of this result that are related to the arithmetical theory of torsion on curves.
| Original language | English |
|---|---|
| Pages (from-to) | 148-154 |
| Number of pages | 7 |
| Journal | Journal of Mathematical Sciences |
| Volume | 158 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Apr 2009 |
ASJC Scopus subject areas
- Statistics and Probability
- General Mathematics
- Applied Mathematics