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Results tagged with rt.representation-theory
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user 102157
Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.
8
votes
0
answers
169
views
On constructible Hall algebra and instantons
I heard in a talk by Yan Soibelman that by starting with a quiver $Q$ with a set of vertices $I$ we can either symmetrize or anti-symmetrize its Euler-Ringel form $\chi_Q$. He claims that anti-symmetr …
- 661
17
votes
3
answers
3k
views
Why is a Topological Field Theory equivalent to a Frobenius algebra?
How can a physicist understand a 2-dimensional topological field theory as a Frobenius algebra? Are there some explicit examples in order to understand this relation?
The definition (e.g. on Wikipedi …
- 661