Parameter space and universal family for connected subgroups of a complex algebraic group
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SFB-Kolloquium
Michaël Le Barbier (Bonn)
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| When |
Feb 03, 2011 from 03:15 pm to 04:15 pm |
| Where | Mainz, 05-432 (Hilbertraum) |
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Abstract I present a construction of a parameter space for connected subgroups of a complex algebraic group. This parameter space is an ind-variety having countably many irreducible components, each of them is a projective variety. This moduli space has a universal family.The construction involves arguments on constructible sets and semi-continuity of invariants in families of Lie algebras.
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