no. 2
Toric orbifolds associated to Cartan matrices
[Orbifolds toriques associés aux matrices de Cartan]
Blume, Mark1
1 Mathematisches Institut, Universität Münster, Einsteinstrasse 62, 48149 Münster, Germany
Annales de l'Institut Fourier, Tome 65 (2015) no. 2, pp. 863-901.

Nous étudions les champs de modules des chaînes de ℙ 1 marquées, reliés aux espaces de modules de Losev-Manin, et montrons que ces champs de modules coïncident avec certains champs toriques qui peuvent être décrits en termes de matrices de Cartan de systèmes de racines de type A. Nous considérons également les variantes de ces champs liés aux systèmes de racines de type B et C.

We investigate moduli stacks of pointed chains of ℙ 1 related to the Losev-Manin moduli spaces and show that these moduli stacks coincide with certain toric stacks which can be described in terms of the Cartan matrices of root systems of type A. We also consider variants of these stacks related to root systems of type B and C.

DOI : 10.5802/aif.2946
Classification : 14M25, 14D23, 14H10
Keywords: Losev-Manin moduli spaces, toric stacks, root systems, Cartan matrices, permutohedron.
Mot clés : Espaces de modules de Losev-Manin, champs toriques, systèmes de racines, matrices de Cartan, permutoèdre.

Blume, Mark 1

1 Mathematisches Institut, Universität Münster, Einsteinstrasse 62, 48149 Münster, Germany 
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Blume, Mark. Toric orbifolds associated to Cartan matrices. Annales de l'Institut Fourier, Tome 65 (2015) no. 2, pp. 863-901. doi : 10.5802/aif.2946. https://aif.centre-mersenne.org/articles/10.5802/aif.2946/

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