Action du groupe des tresses sur une catégorie |
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| Authors: | P Deligne |
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| Institution: | (1) School of Mathematics, Institute for Advanced Study, Princeton, NJ 08540, USA (e-mail: deligne@ math.ias.edu), US |
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| Abstract: | We describe how to define by generators and relations an action of the braid group on a category. More generally, how to
define a functor from a generalized positive braids monoid, corresponding to a finite Coxeter group, to a monoidal category.
Applications to constructions of Bondal (exceptional systems) and of Broué–Michel (correspondences on flag manifolds) are
given.
0. Introduction...159
1. Actions...164
2. Contractibilité...171
Bibliographie...175
Oblatum: VII-1996 |
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| Keywords: | |
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