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# Documents  Abouzaid, Mohammed | enregistrements trouvés : 1

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## Multi angle  Nearby Lagrangians are simply homotopic Abouzaid, Mohammed (Auteur de la Conférence) | CIRM (Editeur )

I will describe joint work with Thomas Kragh proving that closed exact Lagrangians in cotangent bundles are simply homotopy equivalent to the base. The main two ideas are (i) a Floer theoretic model for the Whitehead torsion of the projection from the Lagrangian to the base, and (ii) a large scale deformation of the Lagrangian which allows a computation of this torsion.

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