Dear Andrew, dear Jason and tableaux devs,
Oops, I am just back from vacations and had not noticed that your
e-mail was not sent to sage-combinat-devel. So let me bounce it there
for others to comment (I'll be traveling back to France tomorrow)!
Jason started working on this ticket. Jason: could you state the
current status?
Cheers,
Nicolas
----- Forwarded message from Andrew Mathas <andrew.mat...@sydney.edu.au> -----
Date: Sun, 01 Aug 2010 22:40:46 +1000
From: Andrew Mathas <andrew.mat...@sydney.edu.au>
To: "Nicolas M. Thiery" <nicolas.thi...@u-psud.fr>
Subject: Re: Joint Sage-Combinat / Chevie workshop report
Dear Nicolas,
On a related issue, is one of able to explain briefly to me what
needs to be done in order to remove `CombinatorialClass` from
sage.combinat.tableau (trac 6295). If I have time I'll look into
this as the current lack of inheritance in the standard tableau
class is making life difficult. I gather that one of the main
issues is that tableau do not necessarily belong to
FiniteEnumeratedSets as they have have fairly arbitrary
contents. If it's easy to describe what needs to be done then I
might sign up for this one, although time is going to be a major
issue.
It should not be that much work. Let me know when a couple days before
you could hop on it, and I'll expand on it on the trac ticket.
When you have some time could you please expand this ticket with more
details of what needs to be done. I have looked around at some of the
other code and haven't really found a good prototype -- this is not to say
that there isn't one, just that I haven't found it! For various reasons
I'd like to get this working now. At the same time I'm planning on
throwing in a little extra functionality and creating a parallel class for
tableaux indexed by multipartitions.
From what I have seen it appears that the model is something like
class(Parent,UniqueRepresentation):
def __init__(self, *args):
....
Parent.__init__(self, category = FiniteEnumeratedSets())
but it would be nice to have a clearer picture of how these things are
supposed to work and in particular how the parent-child relationship is
supposed to work. I gather that a similar job needs to be done with
partitions.py?
I know that you are busy currently with FPSAC, so please take your time on
this. If there is documentation that covers this please just direct me to
this -- no doubt I should know where this is, so apologies!
Best,
Andrew
----- End forwarded message -----
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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