List questions from homological-algebra

Published on 14 Jun 2020 - 23:37

111

Views

Chain Complex morphism: Arbitrary maps instead of Homomorphism?

Published on 27 Mar 2026 - 14:58

559

Views

Trace and higher traces on an algebra

Published on 29 Mar 2026 - 2:46

460

Views

Weibel 2.5.1 Equivalent statements of injective $R$-module.

Published on 27 Mar 2026 - 15:07

90

Views

If $S$ is simple a module over a ring $R$ which is noetherian, hereditary and every simple module is injective, then $S$ is finitely presentated.

Published on 15 Jun 2020 - 19:32

218

Views

Grothendieck category with a generator has injective hulls (envelopes): a subtlety in Freyd's book on abelian category

Published on 16 Jun 2020 - 14:14

148

Views

Perfect $\mathbb Z_\ell$-modules

Published on 28 Mar 2026 - 22:24

311

Views

Two definitions of singular cohomology

Published on 20 Jun 2020 - 17:01

107

Views

Weibel 4.1.2. Projective , injective and flat dimension of $A$

Published on 21 Jun 2020 - 12:19

320

Views

Proving the isomorphism $A \otimes B \cong B\otimes A$ of the tensor products of abelian groups $A,B$ given the definition by the quotient groups.

Published on 31 Mar 2026 - 13:49

70

Views

Snake lemma, pictorially on simplicial complexes

Published on 26 Mar 2026 - 9:26

253

Views

homomorphic image of semi-simple ring is not necessarily semi-simple

Published on 23 Feb 2026 - 4:00

114

Views

On transfer and base change map on Grothendieck groups induced from injective ring homomorphism

Published on 25 Mar 2026 - 6:12

82

Views

Simple tensors and projective modules

Published on 28 Mar 2026 - 3:01

129

Views

Module with Torsion elements over a ring with no zero divisors

Published on 22 Jun 2020 - 22:10

List Question

Pullback of epi is epi in abelian category?

Chain Complex morphism: Arbitrary maps instead of Homomorphism?

Trace and higher traces on an algebra

Weibel 2.5.1 Equivalent statements of injective $R$-module.

If $S$ is simple a module over a ring $R$ which is noetherian, hereditary and every simple module is injective, then $S$ is finitely presentated.

Grothendieck category with a generator has injective hulls (envelopes): a subtlety in Freyd's book on abelian category

Perfect $\mathbb Z_\ell$-modules

Two definitions of singular cohomology

Weibel 4.1.2. Projective , injective and flat dimension of $A$

Proving the isomorphism $A \otimes B \cong B\otimes A$ of the tensor products of abelian groups $A,B$ given the definition by the quotient groups.

Snake lemma, pictorially on simplicial complexes

homomorphic image of semi-simple ring is not necessarily semi-simple

On transfer and base change map on Grothendieck groups induced from injective ring homomorphism

Simple tensors and projective modules

Module with Torsion elements over a ring with no zero divisors

Trending Questions

Popular # Hahtags

Popular Questions