The category of toric stacks

Details The category of toric stacks The category of toric stacks

2006-10-18

arxiv.org/abs/math/0610548v4

Mathematics

Algebraic Geometry

the final version appeared in Compositio Math

Scientific paper

In this paper, we prove that there exists an equivalence between 2-category of smooth Deligne-Mumford stacks with torus-embeddings and actions, and the 1-category of stacky fans. For this purpose, we obtain two main results. The first is to investigate a combinatorial aspect of the 2-category of toric algebraic stacks defined in \cite{I2}. We establish an equivalence between the 2-category of toric algebraic stacks and the 1-category of stacky fans. The second is to give a geometric characterization theorem for toric algebraic stacks.

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