List questions from derived-functors

Published on 07 Dec 2020 - 11:48

138

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Derived tensor product , independence of resolution

Published on 29 Dec 2020 - 4:15

174

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$\mathrm{Tor}_1^R(R/I,R/J)=(I\cap J)/(IJ)$

Published on 29 Dec 2020 - 20:43

75

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Question about tensor product of cohomologies

Published on 10 Jan 2021 - 20:25

74

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Hom, H$^n$ and tensor product

Published on 25 Mar 2026 - 5:05

117

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Confusion about derived functors and inverse image sheaves

Published on 11 Feb 2021 - 4:32

72

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Determine $\operatorname{Ext}_{\mathbb Z}^i(A,B)$ using projective resolutions

Published on 11 Feb 2021 - 23:58

100

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Cohomology(ies) of simplicial sheaves

Published on 27 Feb 2021 - 20:42

418

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Derived hom-tensor adjunction for $O_X$-modules

Published on 26 Mar 2026 - 21:25

65

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$\operatorname{Ext}^2(A, \mathbb{Z})$ for $A$ abelian

Published on 03 Mar 2021 - 1:46

135

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Cyclic Homology of a mixed complex as derived tensor product.

Published on 03 Mar 2021 - 20:20

95

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Does taking restriction and left derived functors commute?

Published on 25 Mar 2026 - 20:12

106

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$0$-th cohomology of derived tensor product.

Published on 11 Apr 2021 - 10:33

371

Views

What's the Tor for k[x,y]?

Published on 14 Apr 2021 - 4:39

102

Views

DUality between derived tensor and derived Hom functors

Published on 16 Apr 2021 - 7:23

List Question

Superfluous assumptions on Vietoris-Begle mapping theorem in Iversen's Cohomology of Sheaves

Derived tensor product , independence of resolution

$\mathrm{Tor}_1^R(R/I,R/J)=(I\cap J)/(IJ)$

Question about tensor product of cohomologies

Hom, H$^n$ and tensor product

Confusion about derived functors and inverse image sheaves

Determine $\operatorname{Ext}_{\mathbb Z}^i(A,B)$ using projective resolutions

Cohomology(ies) of simplicial sheaves

Derived hom-tensor adjunction for $O_X$-modules

$\operatorname{Ext}^2(A, \mathbb{Z})$ for $A$ abelian

Cyclic Homology of a mixed complex as derived tensor product.

Does taking restriction and left derived functors commute?

$0$-th cohomology of derived tensor product.

What's the Tor for k[x,y]?

DUality between derived tensor and derived Hom functors

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