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Results tagged with rt.representation-theory
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user 485210
Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.
6
votes
Quiver with two objects and two arrows composing to zero
The path algebra of this quiver is also the Yoneda algebra $$\mathrm{Ext}^\bullet(\mathcal O_{\mathbb P_1}\oplus \mathcal O_0,\mathcal O_{\mathbb P_1}\oplus \mathcal O_0)$$ of the direct sum of the st …
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