Timeline for Representation theory of Discrete Subgroups of Lie groups
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| Jan 13, 2013 at 12:31 | comment | added | Venkataramana | Apologies: in this case, superrigidity and complete reducibility follow from the congruence subgroup property. Complete reducibility does not follow directly from super-rigidity but one has to have an extra argument using vanishing of the first cohomology of $\Gamma $ with values in finite dimensional representations. This is also done in Margulis' book on discrete subgroups of semi-simple Lie groups. | |
| Jan 13, 2013 at 12:22 | history | answered | Venkataramana | CC BY-SA 3.0 |