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Results tagged with derived-categories
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user 32972
For questions about the derived categories of various abelian categories and questions regarding the derived category construction itself.
3
votes
Accepted
Formality of classifying spaces (for not necessarily connected groups)
The answer is yes $D^b_G(X)$ is equivariantly formal. The result has been proved in a diploma thesis written under the supervision of Wolfgang Soergel. (Unfortunately it is not available electronicall …
- 2,554
4
votes
0
answers
246
views
Formal DG-algebras
Sorry for this question but I really have difficulties with model categories.
Usually a $dg$-algebra $A$ is called formal, if there exists a $dg$-algebra $B$ and quasi-isomorphisms $$A\leftarrow B\to …
- 2,554
5
votes
1
answer
401
views
Equivariant Formality
Let $G$ be a finite group and $\mathcal{A}$ be a $dg$-algebra. Assume $G$ acts on $\mathcal{A}$, i.e. there exists a homomorphism $G\to {\rm Aut}_{dg}(\mathcal{A})$.
Assume further there exists a $dg …
- 2,554