Algebra Seminar  RSS

29/11/2006, 15:00 — 16:00 — Room P3.10, Mathematics Building
Pedro del Angel, CIMAT Mexico

On the Motive of certain subvarieties of fixed Flags

There is a canonical desingularization of the Unipotent variety of SL n, whose fibres can be identified with the variety of fixed flags under the action of the corresponding unipotent element. If this unipotent element is of type (p,q), meaning its Jordan canonical form has two blocks of sizes p>q, then we will see that the irreducible components of the fiber have a very simple geometrical description and use this description to compute the corresponding Chow Motives.

Current organizer: Gustavo Granja

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