On Tuesday, 11 September 2012 21:09:39 UTC+8, John Cremona wrote:
>
> Dima, you have just insulted my favourite word (catalecticant)!
oops, sorry, I didn't mean getting personal. Please give my regards to
catalecticants. :–)
The 1st year of my 1st postdoc was wasted on implementing stuff from Grace
and Young, in C+gmp, (as my then boss wished) and I didn't enjoy it at all.
And the place I was at didn't do the proper work permit paperwork, and it
was Pasechnik vs. State of the Netherlands, with the latter willing to
deport me, for most of that bloody year...
They
> play an important role in 2-descent on elliptic curves! I will be
> happy when search_src("catalecticant") returns a result.
>
> But don't worry, I will not be campaigning to have Sylvester's
> preferred "catalecticizant" as an alias (see
> http://trac.sagemath.org/sage_trac/ticket/13431).
>
> John
>
> On 11 September 2012 14:03, Dima Pasechnik <[email protected] <javascript:>>
> wrote:
> >
> >
> > On Tuesday, 11 September 2012 20:16:37 UTC+8, Volker Braun wrote:
> >>
> >> But I need the classical invariants / covariants with their
> conventional
> >> names and normalizations in the literature.
> >
> >
> > I don't think that 98% of Grace and Young
> > (http://archive.org/details/algebraofinvaria00graciala) belong to core
> Sage.
> > I'd say it might be an optional package.
> > I don't mind discriminants and other bits of the classical invariant
> theory
> > which went on to live their lives in the modern maths, but, say,
> > catalecticants, minimal systems of invariants for 5-ics, etc, please,
> give
> > me a break...
> >
> >>
> >> I'm not trying to do the most general SL(n,C) representation theory
> here.
> >>
> >> On Tuesday, September 11, 2012 1:12:57 PM UTC+1, Dima Pasechnik wrote:
> >>>
> >>> Yes, it's great, but I would rather like to see it packaged as
> invariants
> >>> of a representation of SL(2,C), not
> >>> as invariants of a binary form.
> >
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>
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