Counting realizations of Laman graphs on the sphere
Abstract
We present an algorithm that computes the number of realizations of a Laman graph on a sphere for a general choice of the angles between the vertices. The algorithm is based on the interpretation of such a realization as a point in the moduli space of stable curves of genus zero with marked points, and on the explicit description, due to Keel, of the Chow ring of this space.
 Publication:

arXiv eprints
 Pub Date:
 March 2019
 arXiv:
 arXiv:1903.01145
 Bibcode:
 2019arXiv190301145G
 Keywords:

 Mathematics  Combinatorics;
 Mathematics  Algebraic Geometry
 EPrint:
 15 pages