Séminaire de Mathématique

Simply laced Lie algebras with built-in structure constants

par Prof. Lisa CARBONE (Rutgers University & IHÉS)

Europe/Paris
Amphitéâtre Léon Motchane (IHES)

Amphitéâtre Léon Motchane

IHES

Le Bois Marie 35, route de Chartres 91440 Bures-sur-Yvette
Description
We construct simply laced semisimple Lie algebras L with structure constants built into the Lie bracket. This also gives structure constants for the simply connected Chevalley group associated to the Lie algebra L. For infinite dimensional simply laced Kac-Moody algebras and their associated Kac-Moody groups, we obtain a complete description of the structure constants for root vectors corresponding to real roots whose sum is real. This is joint work with Pierre Cartier.
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