MatrixGroups are immutable and their comparison is by checking the
generators (and not isomorphism), which are essentially the construction
parameters (in reality, they are the corresponding GAP group). For
permutation groups, the equality seems to be isomorphism. So there is no
problem for Mat
On Friday, May 25, 2018 at 12:17:35 PM UTC-7, Simon King wrote:
>
> But they could still be CachedRepresentation. Then, if the same subgroup
> is given by the same generators, it is identical, but if the same
> subgroup is given by different generators, it is just equal but not
> identical.
>
Hi!
On 2018-05-25, Nils Bruin wrote:
>> I don't see a reason off-hand why these should not be UniqueRepresentation
>> subclasses.
>>
>
> There is a very good reason why they should NOT'. Equality between
> subgroups is not uniquely determined by the construction parameters. It's
> part of the
On 25 May 2018 at 18:47, kcrisman wrote:
> Less relevant, but still ... Also probably behind a paywall ... anyway,
> this is a review of Barry Mazur and William Stein's book on the Riemann
> Hypothesis by someone who knows something about writing good books about
> analytic number theory and repr
On Fri, May 25, 2018 at 10:47 AM, kcrisman wrote:
> Less relevant, but still ... Also probably behind a paywall ... anyway, this
> is a review of Barry Mazur and William Stein's book on the Riemann
> Hypothesis by someone who knows something about writing good books about
> analytic number theory
Less relevant, but still ... Also probably behind a paywall ... anyway,
this is a review of Barry Mazur and William Stein's book on the Riemann
Hypothesis by someone who knows something about writing good books about
analytic number theory and representation theory. No Sage in the review
but s
On Friday, May 25, 2018 at 1:00:22 AM UTC-7, Travis Scrimshaw wrote:
>
> I believe the matrix and permutation groups are quite old code, so
> UniqueRepresentation may not have been available at that time. The
> permutation group code does need updating; in particular, it is still an
> old-styl
On 5/25/2018 11:02 AM, kcrisman wrote:
Unfortunately a paywall, but very interesting data and analysis relevant
to mathematical software communities too - plus, Sage developer and
co-author Ursula Whitcher of Math Reviews gives a shout-out to SageMath
in the author bio :)
https://link.springer
On Fri, May 25, 2018 at 8:02 AM, kcrisman wrote:
> Unfortunately a paywall, but very interesting data and analysis relevant to
> mathematical software communities too - plus, Sage developer and co-author
> Ursula Whitcher of Math Reviews gives a shout-out to SageMath in the author
> bio :)
> https
Unfortunately a paywall, but very interesting data and analysis relevant to
mathematical software communities too - plus, Sage developer and co-author
Ursula Whitcher of Math Reviews gives a shout-out to SageMath in the author
bio :)
https://link.springer.com/article/10.1007%2Fs00283-017-9761-7
I believe the matrix and permutation groups are quite old code, so
UniqueRepresentation may not have been available at that time. The
permutation group code does need updating; in particular, it is still an
old-style parent:
sage: S.__class__.__mro__
(,
,
,
,
,
,
,
,
,
,
,
,
...
(Si
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