Mathematics – Representation Theory
Scientific paper
1999-09-10
Mathematics
Representation Theory
Scientific paper
We modify the Hochschild $\phi$-map to construct central extensions of a
restricted Lie algebra. Such central extension gives rise to a group scheme
which leads to a geometric construction of unrestricted representations. For a
classical semisimple Lie algebra, we construct equivariant line bundles whose
global sections afford representations with a nilpotent p-character.
Mirkovic Ivan
Rumynin Dmitriy
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