#5487: Content function for tableaux
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Reporter: andrew.mathas | Owner: andrew.mathas
Type: enhancement | Status: new
Priority: trivial | Milestone:
Component: combinatorics | Keywords: tableaux content
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Changes (by andrew.mathas):
* owner: mhansen => andrew.mathas
Comment:
Replying to [comment:2 hivert]:
> Replying to [comment:1 saliola]:
>
> > 1. content is only well-defined if k appears exactly once in the
tableau. How should it work for the following tableau?
When pushing this patch I described it as a content function on standard
tableau and then added it to the Tableau class...I'll move it into the
StandardTableau class and then all will be well.
The obvious "generalization" of the definition to semistandard tableau is
used in the literature but writing the corresponding function is slightly
cumbersome because in the classical case you add up the contents of all of
nodes labelled k whereas for the q-analogue you add up the q-contents.
Perhaps the nicest solution is to define
{{{
def content(self, k, q=1):
...
}}}
I have never used contents for tableaux which are not (semi)standard.
> > 2. In case k does not appear in the tableau, perhaps it is better to
raise an error?
OK
> > 3. Whatever is decided for 2, it should be documented. You can do this
with an OUTPUT section.
>
> 4. I think parameters should be written {{{``n``}}} (raw sage code)
instead of {{{`n`}}} (latex code) or {{{<n>}}} (no particular meaning in
rest) see http://wiki.sagemath.org/combinat/HelpOnTheDoc
Thanks.
One last question: is there an easy way to "update" the patch and push it
back to the server? Or do I have to somehow delete this patch and then
reapply?
Cheers,
Andrew
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5487#comment:3>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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