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.

Sign up for GitHub

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

Jump to bottom

bug in basis of zero modules #3581

Open

mahrud opened this issue Nov 13, 2024 · 0 comments

Member

mahrud commented Nov 13, 2024

Here's a bizarre output:

i12 : basis image(0 * matrix id_(QQ^2))

o12 = | 1 0 |
      | 0 1 |

o12 : Matrix

In comparison:

i13 : basis image(0 * matrix id_((QQ[x])^2))

o13 = 0

o13 : Matrix

i14 : target oo, source oo

o14 = (image 0, 0)

o14 : Sequence

This has been the case at least since 1.10, but probably forever.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment