Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Hochschild, Quillen or Triple (co)homology #548

Open
nasief opened this issue Oct 26, 2022 · 8 comments
Open

Hochschild, Quillen or Triple (co)homology #548

nasief opened this issue Oct 26, 2022 · 8 comments

Comments

@nasief
Copy link

nasief commented Oct 26, 2022

Hi guys

I am a newbi to the whole GAP thing, I am wondering if there is a way to calculate the homologies of Hochschild, Quillen or Triple?

@mohamed-barakat
Copy link
Member

mohamed-barakat commented Oct 26, 2022

For the Hochschild cohomology, we need the so-called envelope algebra $A^e$ to be a computable ring in the sense defined in this paper. For all algebras $A$ for which $A^e$ is computable we can compute the Hochschild cohomology, yes.

@mohamed-barakat
Copy link
Member

Which algebra $A$ are you interested in?

@nasief
Copy link
Author

nasief commented Oct 27, 2022

I am interested in polynomial algebras over prime fields FF_p[[x]] modulo some dividing power x^n

@mohamed-barakat
Copy link
Member

Yes, computing the Hochschild cohomology for these algebras is very simple. Do you have specific examples you want to compute?

@nasief
Copy link
Author

nasief commented Oct 28, 2022

What I am looking for is I want to calculate this kind of homology but there are some symmetry conditions imposed on the chains , they are symmetric in some sense

Here is the link to that article

https://www.ams.org/journals/tran/1962-104-02/S0002-9947-1962-0142607-6/S0002-9947-1962-0142607-6.pdf

I want to consider say polynomial algebra over F_3 modulo x^n with coefficients in F_3 subject to those symmetry conditions which are described for dimension 1,2 and 3

@nasief
Copy link
Author

nasief commented Nov 1, 2022

Hi @mohamed-barakat any updates?

@mohamed-barakat
Copy link
Member

I didn't have time to look at the new commutative algebra cohomology described in the paper. Hochschild cohomology for the cases you describe is easy if this is would be a good starting point.

@nasief
Copy link
Author

nasief commented Nov 6, 2022

I have a good sense of Hochschild. But what I am looking for are those other notions of cohomology.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants