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Open AccessJournal ArticleDOI

The category of toric stacks

Isamu Iwanari
- 01 May 2009 - 
- Vol. 145, Iss: 03, pp 718-746
TLDR
In this paper, it was shown that there is an equivalence between the 2-category of smooth Deligne-Mumford stacks with torus embeddings and actions and the 1-categories of stacky fans.
Abstract
In this paper, we show that there is an equivalence between the 2-category of smooth Deligne–Mumford stacks with torus embeddings and actions and the 1-category of stacky fans. To this end, we prove two main results. The first is related to a combinatorial aspect of the 2-category of toric algebraic stacks defined by I. Iwanari [Logarithmic geometry, minimal free resolutions and toric algebraic stacks, Preprint (2007)]; we establish an equivalence between the 2-category of toric algebraic stacks and the 1-category of stacky fans. The second result provides a geometric characterization of toric algebraic stacks. Logarithmic geometry in the sense of Fontaine–Illusie plays a central role in obtaining our results.

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Citations
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Journal ArticleDOI

Smooth toric Deligne-Mumford stacks

TL;DR: In this article, the authors give a geometric definition of smooth toric Deligne-Mumford stacks using the action of a torus, and show that their definition is equivalent to the one of Borisov, Chen and Smith in terms of stacky fans.
Journal ArticleDOI

A Mirror Theorem for Toric Stacks

TL;DR: In this article, a Givental-style mirror theorem for toric Deligne-Mumford stacks X was proved for genus-zero Gromov-Witten invariants.
Journal ArticleDOI

Toric stacks I: The theory of stacky fans

TL;DR: In this paper, a theory of toric stacks is introduced and developed, which encompasses and extends several notions of Toric stacks defined in the literature, as well as classical toric varieties.
Posted Content

Localization in gromov-witten theory and orbifold gromov-witten theory

TL;DR: In this article, the authors explain how to use localization to compute Gromov-Witten invariants of smooth toric varieties and orbifold invariants for Deligne-Mumford stacks.
Journal ArticleDOI

A mirror theorem for toric stacks

TL;DR: In this paper, a Givental-style mirror theorem for toric Deligne-Mumford stacks X was proved for genus-zero Gromov-Witten invariants.
References
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Book

Smooth Compactifications of Locally Symmetric Varieties

TL;DR: In this article, the authors present a universal method for the resolution of a class of singularities in algebraic geometry, which brings together ideas from algebraic geometrical, differential geometry, representation theory and number theory.
Journal ArticleDOI

Quotients by groupoids

TL;DR: In this article it was shown that a flat group scheme with finite stabilizers can be shown to have a uniform geometric, uniform categorical quotient in the category of algebraic spaces.
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