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Results tagged with rt.representation-theory
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user 4991
Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.
7
votes
1
answer
2k
views
Tensor products of permutation representations of symmetric groups.
I am looking for a reference for the following fact which must be classical (which makes it harder, for me, to track a reference down). I am interested because there are similar (more complicated) st …
- 4,990
6
votes
What is the (Koszul? derived?) interpretation of a pair of Lie algebras with the same cohomo...
You (and "everyone") may already know this, but there is a really simple answer to a variant of your question, that is when instead of starting with a Lie algebra you start with a connected differenti …
- 4,990
8
votes
Accepted
Characteristic classes of symmetric group $S_4$
For Q2, my collaborators and I show that all mod-two cohomology of symmetric groups is generated by Stiefel-Whitney classes of standard representations, if you allow both cup product and transfer (ind …
- 4,990