On the Local-Global Conjecture for integral Apollonian gaskets
arXiv:1205.4416
Abstract
We prove that a set of density one satisfies the local-global conjecture for integral Apollonian gaskets. That is, for a fixed integral, primitive Apollonian gasket, almost every (in the sense of density) admissible (passing local obstructions) integer is the curvature of some circle in the gasket.
64 pages, 3 figures; Appendix by Peter Varju