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Documents  14D23 | enregistrements trouvés : 8

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- 537 p.
ISBN 978-4-86497-032-7

Advanced studies in pure mathematics , 0069

Localisation : Collection 1er étage

théorie des modules # géométrie algébrique

14-06 ; 11G50 ; 14C05 ; 14C22 ; 14C25 ; 14C30 ; 14D20 ; 14D21 ; 14D23 ; 14H10 ; 14H50 ; 14J10 ; 14J15 ; 14J26 ; 14J27 ; 14J28 ; 14J29 ; 14J50 ; 14J60 ; 14K10 ; 14K25 ; 14N35 ; 18E30 ; 32M15 ; 32N15

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- viii; 323 p.
ISBN 978-1-4704-1557-0

Contemporary mathematics , 0643

Localisation : Collection 1er étage

préfaisceau algébrique # topologie algébrique # géométrie algébrique # théorie des catégories # faisceau

14D23 ; 14D05 ; 18E30 ; 18D05 ; 18D10 ; 18G30 ; 55P43 ; 57R56 ; 55U40 ; 81T45 ; 14-06 ; 18-06 ; 14A20 ; 14F05 ; 14F10 ; 18F99 ; 16G20 ; 53D12 ; 00B25

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Algebraic and Complex Geometry

After recalling classical Tannaka duality for finite groups, I will discuss an extension to equivariant algebraic geometry, and more generally to algebraic stacks. Surprisingly, this is related to formal glueings and Neron-Popescu desingularization.

14A20 ; 14D23

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Pants complexes of large surfaces were proved to be vigid by Margalit. We will consider convergence completions of curve and pants complexes and show that some weak four of rigidity holds for the latter. Some key tools come from the geometry of Deligne Mumford compactification of moduli spaces of curves with level structures.

57M10 ; 20F34 ; 14D23

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Algebraic and Complex Geometry

Following Grothendieck’s vision that a motive of an algebraic variety should capture many of its cohomological invariants, Voevodsky introduced a triangulated category of motives which partially realises this idea. After describing some of the properties of this category, I explain how to define the motive of certain algebraic stacks. I will then focus on defining and studying the motive of the moduli stack of vector bundles on a smooth projective curve and show that this motive can be described in terms of the motive of this curve and its symmetric powers. If there is time, I will give a conjectural formula for this motive, and explain how this follows from a conjecture on the intersection theory of certain Quot schemes. This is joint work with Simon Pepin Lehalleur. Following Grothendieck’s vision that a motive of an algebraic variety should capture many of its cohomological invariants, Voevodsky introduced a triangulated category of motives which partially realises this idea. After describing some of the properties of this category, I explain how to define the motive of certain algebraic stacks. I will then focus on defining and studying the motive of the moduli stack of vector bundles on a smooth ...

14A20 ; 14C25 ; 14C15 ; 14D23 ; 14F42 ; 14H60 ; 18E30 ; 19E15

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I will discuss applications of geometric representation theory to topological and quantum invariants of character stacks. In particular, I will explain how generalized Springer correspondence for class $D$-modules and Koszul duality for Hecke categories encode surprising structure underlying the homology of character stacks of surfaces (joint work with David Ben-Zvi and David Nadler). I will then report on some work in progress with David Jordan and Pavel Safronov concerning a q-analogue of these ideas. The applications include an approach towards Witten’s conjecture on the fi dimensionality of skein modules, and methods for computing these dimensions in certain cases. I will discuss applications of geometric representation theory to topological and quantum invariants of character stacks. In particular, I will explain how generalized Springer correspondence for class $D$-modules and Koszul duality for Hecke categories encode surprising structure underlying the homology of character stacks of surfaces (joint work with David Ben-Zvi and David Nadler). I will then report on some work in progress with David Jordan ...

14F10 ; 14D23

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- v; 120 p.
ISBN 978-1-4704-4144-9

Memoirs of the American Mathematical Society , 1282

Localisation : Collection 1er étage

topos à l'infini # empilement élevé # empilement de Deligne-Mumford # orbifold

18B25 ; 14D23 ; 58A03

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- xi; 298 p.
ISBN 978-1-4704-2798-6

American mathematical society colloquium publications , 0062

Localisation : Collection 1er étage

géométrie algébrique # espace algébrique # empilement algébrique # fibration # espace de modules fins # espace de modules grossiers

14D23 ; 14D20 ; 14D22

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