#18587: cartesian products of growth groups
-------------------------------------+-------------------------------------
Reporter: dkrenn | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.9
Component: asymptotic | Resolution:
expansions | Merged in:
Keywords: asymptotics, | Reviewers: Clemens Heuberger
gsoc15 | Work issues:
Authors: Benjamin Hackl, | Commit:
Daniel Krenn | 7f209ea7928606090e597d0633685649739932b8
Report Upstream: N/A | Stopgaps:
Branch: u/behackl/asy |
/growth-group-cartesian |
Dependencies: #18223, #18586, |
#18930 |
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Comment (by cheuberg):
Replying to [comment:25 behackl]:
> Replying to [comment:22 cheuberg]:
> > The current code makes some effort to recognize `**` in
`create_key_and_extra_args`, but `**` is not recognized in
`create_object`.
>
> Minor discrepancies like this are fixed on the cleanup ticket #19083. No
need to introduce additional merge conflicts here.
ok.
> > > Also, I think that we should restrict building cartesian products of
growth groups such that a factor may only occur once (currently, `x^ZZ *
x^ZZ` is possible). I'll discuss this with Daniel.
> >
> > that might be hard.
> >
>
> Turns out that this is very true. We will start with disallowing certain
products like `x^ZZ * x^ZZ` and `x^ZZ * x^QQ` in the cleanup ticket.
Altering the factory here only produces more merge conflicts with #19083
(the entire factory is rewritten there, meaning that the code would have
to be written twice).
ok.
This is a conditional positive review from my side: conditional on the
dependency #18223.
--
Ticket URL: <http://trac.sagemath.org/ticket/18587#comment:26>
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