List questions from representation-of-algebras | MathQA

How proof The shape of the two hearts in $\mathcal{D}^b(A_n)$ is the same if the graded undergrphas of the Ext quiver of heart of are equal

Published on 05 Nov 2022 - 10:34

In a $C^*$ algebra, if $A\geq B\geq 0$ then $A^{\frac{1}{2}}\geq B^{\frac{1}{2}}$

Published on 18 Nov 2022 - 15:06

What does $\mathbb{C}[G ]\otimes_{\mathbb{C}[H]} W$ mean?

Published on 02 Dec 2022 - 4:23

Can a finitely generated commutative $\mathbb C$-algebra have an indecomposible representation of dimension $>1$?

Published on 11 Dec 2022 - 3:31