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 |
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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