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Matthias Künzer

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11 Answers

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15

Why not define triangulated categories using a mapping cone functor?

Mar 9 '11 at 9:59

12

Awfully sophisticated proof for simple facts

Oct 13 '11 at 6:42

10

Classifying triangulated structures on a graded category

Sep 18 '10 at 20:45

5

German mathematical terms like “Nullstellensatz”

Apr 20 '11 at 6:08

5

Is there any generalization of the Dold-Kan correspondence?

Sep 17 '10 at 12:30

4

Spectral sequences: opening the black box slowly with an example

Dec 15 '10 at 10:14

4

Natural examples of sequences of adjoint functors

Nov 28 '10 at 22:01

4

Can one extend a morphism of commutative triangles to a morphism of octahedral diagrams?

Sep 17 '10 at 10:29

3

Number of Subgroups of p-Groups

Sep 9 '11 at 15:07

2

$\pi_n(f)=0$ implies $f\simeq \ast$? $H_n(f)=0$ implies $f\simeq \ast$?

Mar 23 '11 at 8:20

1

If a colimit of distinguished triangles exists, is it also a distinguished triangle?

Sep 17 '10 at 11:05

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