Wonderful models for toric arrangements

Details Wonderful models for toric arrangements Wonderful models for toric arrangements

2009-12-30

arxiv.org/abs/0912.5461v2

Mathematics

Algebraic Geometry

Final version, to appear on IMRN. 23 pages, 1 picture

Scientific paper

10.1093/imrn/rnr016

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.

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