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.

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

Add DirectProductOfPermGroupsWithMovedPoints helper #4326

Merged
merged 2 commits into from
Mar 25, 2021
Merged

Add DirectProductOfPermGroupsWithMovedPoints helper #4326

merged 2 commits into from
Mar 25, 2021

Commits on Mar 23, 2021

  1. Add DirectProductOfPermGroupsWithMovedPoints helper 

    This is basically what DirectProduct does for a set of permutation groups,
except that one can override the moved points for each factor. This is useful
if one needs to compute "sums of G-sets": If e.g. we have a trivial group
acting on 3 points, and a Sym(4), then DirectProduct just gives back the
Sym(4). But if we need the result to act on 3+4=7 points, with the Sym(4)
acting on points acting on [4..7], then this new helper allows us to do that.
    @fingolfin
    fingolfin committed Mar 23, 2021
    Configuration menu
    Copy the full SHA
    05d59f1 View commit details
    Browse the repository at this point in the history

  2. Make some lists in DirectProductInfo immutable

    @fingolfin
    fingolfin committed Mar 23, 2021
    Configuration menu
    Copy the full SHA
    01676ad View commit details
    Browse the repository at this point in the history