User Constantin-Nicolae Beli

3 votes

1 answer

141 views

The "semi-symmetric" algebra of a vector space

asked May 3, 2019 at 7:40

3 votes

3 answers

714 views

Cohomology of elementary abelian $p$-groups, i.e. $H(G,{\mathbb F}_p)$ with $G\cong{\mathbb F}_p^r$

asked Mar 22, 2020 at 2:08

2 votes

0 answers

536 views

A long exact sequence involving the mapping cone (Exercise 1.5.9 in Weibel)

asked Jul 8, 2021 at 10:35

2 votes

0 answers

68 views

Two results on cohomology adapted to cochains

asked Mar 19, 2023 at 19:59

2 votes

0 answers

108 views

Explicit formulas for some homotopies - already known?

asked Mar 26, 2023 at 16:39

1 vote

0 answers

175 views

Cochains with multilinear differentials

asked Jul 15, 2021 at 20:59

1 vote

1 answer

162 views

An alternative description of normalized cochains in terms of tensor powers of the augmented ideal

asked May 15, 2020 at 22:18

1 vote

0 answers

96 views

A certain cochain complex. Is it already known?

asked Jul 6, 2021 at 12:13

1 vote

0 answers

104 views

A formula that proves that $G$ acts trivially on $H^*(G,M)$

asked Oct 11, 2019 at 20:16

1 vote

2 answers

489 views

A description of the kernel of projection map from the tensor algebra to the symmetric algebra $T(V)\to S(V)$

asked Nov 14, 2019 at 12:09

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10 Questions

The "semi-symmetric" algebra of a vector space

Cohomology of elementary abelian $p$-groups, i.e. $H(G,{\mathbb F}_p)$ with $G\cong{\mathbb F}_p^r$

A long exact sequence involving the mapping cone (Exercise 1.5.9 in Weibel)

Two results on cohomology adapted to cochains

Explicit formulas for some homotopies - already known?

Cochains with multilinear differentials

An alternative description of normalized cochains in terms of tensor powers of the augmented ideal

A certain cochain complex. Is it already known?

A formula that proves that $G$ acts trivially on $H^*(G,M)$

A description of the kernel of projection map from the tensor algebra to the symmetric algebra $T(V)\to S(V)$