Dima, you have just insulted my favourite word (catalecticant)! 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]> 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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