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Nombre de programmes trouvés : 17487
Conférences

le (1h23s)

Laurent Manivel - The Satake correspondence in quantum cohomology

The Satake isomorphism identi es the irreducible representations of a semisimple algebraic group with the intersection cohomologies of the Schubert varieties in the a?ne Grassmannian of the Langlands dual group. In the very special case where the Schubert varieties are smooth, one gets an identi cation between the so-called minuscule representations and the cohomology of the so-called minuscule homogeneous spaces. I will explain how this extends to quantum cohomology.
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Conférences

le (1h52s)

Nicolas Perrin - Quantum K-theory of some homogeneous spaces

Quantum K-theory is as quantum cohomology a generalisation of the classical coho- mology algebra of a variety X . In this talk I will explain the connection between the geometry of the moduli space of stable maps, in particular rational connectedness properties, and the computation of structure constants for X a rational homogeneous space. This is based on a joint work with A. Buch, P.-E. Chaput and L. Mihalcea
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Conférences

le (20m42s)

Social Mix Policies and Research: Finding the "Right Balance" [VO] / Sako Musterd

Social Mix Policies and Research: Finding the "Right Balance" [version anglaise] / Sako Musterd. In "Mixité : an urban and housing issue? Mixing people, housing and activities as urban challenge of the future", 23ème colloque international de l'European Network for Housing Research (ENHR), organisé par le Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires (LISST) à l'Université Toulouse II-Le Mirail, 5-8 juillet 2011.Plénière 1: Mixité, diversity: pertinent notions?, 6 juillet 2011. ‘Social mixing’ has been embraced by several governments as a remedy for urban social problems, or perhaps as an instrument to address other urban issues as well. It has become a part ...
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Conférences

le (17m54s)

Planning social mix. A critical review of programs [VO] / Jürgen Friedrichs

Planning social mix. A critical review of programs [version anglaise] / Jürgen Friedrichs. In "Mixité : an urban and housing issue? Mixing people, housing and activities as urban challenge of the future", 23ème colloque international de l'European Network for Housing Research (ENHR), organisé par le Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires (LISST) à l'Université Toulouse II-Le Mirail, 5-8 juillet 2011.Plénière 1: Mixité, diversity: pertinent notions?, 6 juillet 2011. Social mix has been a goal of urban planning since long time, from the the Cadbury (Bournville) estate at the end of the 19th century up to programs in the early 21st century. ...
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Conférences

le (52m31s)

Aaron Pixton - The stable pairs equivariant descendent vertex

The counting function associated to the moduli space of stable pairs on a 3-fold X is conjectured to give the Laurent expansion of a rational function. For toric X , this conjecture can be proven by a careful grouping of the box con gurations appearing in the stable pairs equivariant descendent vertex. I will describe this approach and then say a little about how it might also be used to study the Donaldson{Thomas vertex. This talk presents joint work with Rahul Pandharipande.
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Cours magistraux

le (1h2m53s)

Yuan-Pin Lee - Introduction to Gromov-Witten theory and the crepant transformation conjecture (Part 4)

In these lectures, Gromov{Witten theory will be introduced, assuming only basic moduli theory covered in the rst week of the School. Then the Crepant Transformation Conjecture will be explained. Some examples, with emphasis on the projective/global cases, will be given. Note: The construction of virtual fundamental class, which forms the foundation of the GW theory, will be given in Jun Li's concurrent lectures and will not be explained here.
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