James Mitchell

The exampleSite directory does not contain the demo site

1

This theme looks awesome, but one minor issue is that the `exampleSite` directory in the repo doesn't contain the source code of the demo site at https://accessible-minimalism.netlify.app/

Inverse of a non-invertible matrix over the integers is a (non-integer) integer matrix

9

In the current GAP master branch I get the following, inverting a non-invertible integer `MatrixObj` results in a matrix that believes it is an integer matrix but whose entries are...

Matrix objects do not belong to `IsAssociativeElement` and there're no filters to identify collections of matrix objects

1

In the current `master` branch ### Observed behaviour ~~~ gap> coll := [Matrix(Integers, [[0, 2, 1], [1, 0, 1], [0, 2, 1]]), > Matrix(Integers, [[5, 1, 1], [0, 0, 1],...

Should finitely-generated semigroups created by `FreeSemigroup` satisfy `IsFpSemigroup`?

4

### Observed behaviour ~~~ gap> IsFpSemigroup(FreeSemigroup(2)); false ~~~ ### Expected behaviour ~~~ gap> IsFpSemigroup(FreeSemigroup(2)); true ~~~ ### Copy and paste GAP banner (to tell us about your setup)

Fix `One` issue

6

This PR resolves Issue #4763 and changes the behaviour of `SemigroupByGenerators` to stop it from returning a monoid if the `One` of the generators is one of the generators. This...

Matrix multiplication is sometimes slow

9

This isn't a bug report or a regression (as far as I'm aware), but just something I noticed recently, and mentioned this morning to @fingolfin @ThomasBreuer and @wucas, from good...

This is a super minor issue but it seems that the latest release of `xtensor-blas` is `0.20.0` from 2022 but the latest GitHub release is `0.6.1` from 2017, which is...

Seg fault for `DigraphReflexiveTransitiveReduction` of large graph

2

I get the following: ~~~ gap> D := DigraphMutableCopy(D); gap> DigraphRemoveAllMultipleEdges(D); gap> DigraphReflexiveTransitiveReduction(D); Stack trace (most recent call last): #31 Object "/homer1/jdm3/gap-4.13.0/gap", at 0x4d6521, in #30 Object "/homer1/jdm3/gap-4.13.0/gap", at 0x4d539f,...

Missing functionality `DigraphCliquesAttr`

1

There's a `DigraphCliquesRepsAttr` but no `DigraphCliquesAttr` so if we compute `DigraphCliques(D)` on an immutable digraph `D`, then the result is not cached.