A residual RiemannRoch formula
Frederic Deglise (Lyon)
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When 
May 31, 2012 from 03:15 pm to 04:15 pm 
Where  Mainz, 05432 (Hilbertraum) 
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Abstract: The RiemannRoch theorem, and especially the formulation of Grothendieck, has long been interpreted in algebraic topology within the framework of oriented cohomology theories. I will explain how to use the homotopy theory of Morel and Voevodsky to get this kind of interpretation of the RiemannRoch theorem formulated for arithmetic schemes. This work yields as a surprise a second RiemannRoch formula which concerns residues rather than Gysin morphisms.