Wonderful models for toric arrangements
arXiv:0912.5461 · doi:10.1093/imrn/rnr016
Abstract
We build a wonderful model for toric arrangements. We develop the "toric analog" of the combinatorics of nested sets, which allows to define a family of smooth open sets covering the model. In this way we prove that the model is smooth, and we give a precise geometric and combinatorial description of the normal crossing divisor.
Final version, to appear on IMRN. 23 pages, 1 picture