List questions from derived-functors

Published on 17 Dec 2013 - 21:22

214

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Physical interpretation of categorical structures related to Dirichlet Branes

Published on 25 Mar 2026 - 9:53

57

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Where is the mistake? (derived functors )

Published on 11 Jan 2014 - 16:05

81

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$Tor_1^\mathbb{Z}(\mathbb{Z}/2\mathbb{Z}, \mathbb{Z}/2\mathbb{Z})$

Published on 22 Jan 2014 - 13:19

1.1k

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Derived push-forward of projective sheaf

Published on 22 Jan 2014 - 13:48

91

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The functor $\underline{\mathbf{R}}^if_*$

Published on 29 Jan 2014 - 22:03

4.6k

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Fully faithful and essentially surjective is an equivalence

Published on 30 Jan 2014 - 21:18

1.3k

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Why is the definition of $\lim^1$ via a cokernel the first derived functor of $\lim$?

Published on 14 Feb 2014 - 14:59

5.4k

Views

Long exact sequence in cohomology associated to a short exact sequence of functors

Published on 19 Feb 2014 - 19:01

372

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Vanishing right-derived functor implies right-exact

Published on 16 Apr 2017 - 1:58

98

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For a sheaf $F$ on $X$ and subspace $Z \hookrightarrow X$, why is $\mathbf{R}\Gamma(Z, F)$ possibly different from $\mathbf{R}\Gamma(Z,F|_Z)$?

Published on 25 Apr 2017 - 13:46

2.5k

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Pushforward and tensor products

Published on 28 Apr 2017 - 9:29

199

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Different definitions of Ext groups

Published on 29 Apr 2017 - 22:37

1.1k

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How to compute Ext and Tor of $(\mathbb{Z}/m\mathbb{Z},\mathbb{Z}/m\mathbb{Z})$ over the ring $\mathbb{Z}/n\mathbb{Z}$?

Published on 01 May 2017 - 15:58

86

Views

How do you differentiate $\ln(\exp(z))$

Published on 25 Mar 2026 - 16:08

List Question

Homological methods in algebraic geometry

Physical interpretation of categorical structures related to Dirichlet Branes

Where is the mistake? (derived functors )

$Tor_1^\mathbb{Z}(\mathbb{Z}/2\mathbb{Z}, \mathbb{Z}/2\mathbb{Z})$

Derived push-forward of projective sheaf

The functor $\underline{\mathbf{R}}^if_*$

Fully faithful and essentially surjective is an equivalence

Why is the definition of $\lim^1$ via a cokernel the first derived functor of $\lim$?

Long exact sequence in cohomology associated to a short exact sequence of functors

Vanishing right-derived functor implies right-exact

For a sheaf $F$ on $X$ and subspace $Z \hookrightarrow X$, why is $\mathbf{R}\Gamma(Z, F)$ possibly different from $\mathbf{R}\Gamma(Z,F|_Z)$?

Pushforward and tensor products

Different definitions of Ext groups

How to compute Ext and Tor of $(\mathbb{Z}/m\mathbb{Z},\mathbb{Z}/m\mathbb{Z})$ over the ring $\mathbb{Z}/n\mathbb{Z}$?

How do you differentiate $\ln(\exp(z))$

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