List questions from homological-algebra

Published on 26 Dec 2014 - 20:17

268

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Yoneda Embedding into Left Exact Functors

Published on 28 Dec 2014 - 23:11

590

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Zero dimensional Gorenstein ring

Published on 01 Apr 2026 - 6:27

72

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Constant projective dimension of $R/I^i$ for all $i$.

Published on 30 Dec 2014 - 1:43

73

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Over an Artin algebra, does Gorenstein projective and Gorenstein flat modules coincides?

Published on 31 Dec 2014 - 7:31

163

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$R$ noetherian, $I$ injective $R$-module $\Rightarrow$ $S^{-1}I$ is injective over $S^{-1}R$

Published on 26 Mar 2026 - 2:45

33

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Existence of certain homomorphism on cochaincomplexes

Published on 02 Jan 2015 - 23:51

656

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Mapping cone of a composition

Published on 02 Oct 2019 - 16:32

242

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Is the four lemma wrong? Do the rows actually need to be exact?

Published on 26 Mar 2026 - 19:06

566

Views

Applications of Jordan-Holder theorem in an abelian category

Published on 03 Oct 2019 - 3:09

49

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(shorter) exact sequences

Published on 26 Mar 2026 - 17:27

527

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Understanding the definition of a tensor product of chain complexes of abelian groups

Published on 03 Oct 2019 - 20:51

44

Views

injective dimension of nilradical multiplied by an injective module

Published on 26 Mar 2026 - 2:51

83

Views

splitting of a central extension

Published on 25 Mar 2026 - 6:01

31

Views

Question on $Ext^1$

Published on 05 Oct 2019 - 10:30

List Question

Homologie of Lie algebra with coefficients in tensor product of modules

Yoneda Embedding into Left Exact Functors

Zero dimensional Gorenstein ring

Constant projective dimension of $R/I^i$ for all $i$.

Over an Artin algebra, does Gorenstein projective and Gorenstein flat modules coincides?

$R$ noetherian, $I$ injective $R$-module $\Rightarrow$ $S^{-1}I$ is injective over $S^{-1}R$

Existence of certain homomorphism on cochaincomplexes

Mapping cone of a composition

Is the four lemma wrong? Do the rows actually need to be exact?

Applications of Jordan-Holder theorem in an abelian category

(shorter) exact sequences

Understanding the definition of a tensor product of chain complexes of abelian groups

injective dimension of nilradical multiplied by an injective module

splitting of a central extension

Question on $Ext^1$

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