Re: [sage-combinat-devel] Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Nicolas M. Thiery
On Tue, Mar 26, 2013 at 05:32:22AM -0700, Martin wrote: >Implementing the idea of a GroupAction category would be also of great >help for the species framework! I could then finally properly >implement the remaining constructions, where (if I remember correctly) >I need to specify

Re: [sage-devel] Re: [sage-combinat-devel] Re: Re: Re: Re: Re: Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Nathann Cohen
Y !!! > no, DFS uses a stack, i.e. LIFO (Last In First Out), not a queue (FIFO, First > in First Out), isn't it? Indeed. Both would work in this case, though :-P > and a queue. A bit of discipline never hurts :) > Otherwise, that's all is needed. But indeed, it's not totally obvi

[sage-combinat-devel] Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Martin
Implementing the idea of a GroupAction category would be also of great help for the species framework! I could then finally properly implement the remaining constructions, where (if I remember correctly) I need to specify actions of a Young subgroup on a set. In particular this concerns unlab

[sage-combinat-devel] Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Volker Braun
On Tuesday, March 26, 2013 7:01:40 AM UTC+1, tom d wrote: > Specify the action! [...] The 'usual' actions then become special > predefined objects, like the special graphs, maybe summoned up > automatically using the permutation/whatever's __call__ function if it's an > idiomatic action like \

Re: [sage-combinat-devel] Re: [sage-devel] Re: Re: Re: Re: Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Nathann Cohen
Helloo !!! > Well, unfortunately I don't know under which Seine bridge mathematicians > are most > welcome :-) Ahahahah. I felt so shocked when I first learnt that Paris did not have the only one O_O > Mind you, when this part of GAP was developed, you were in primary > schoo

[sage-combinat-devel] Re: [sage-devel] Re: Re: Re: Re: Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Dima Pasechnik
On 2013-03-24, Nathann Cohen wrote: > --bcaec5430f1420c95c04d8a8e8c9 > Content-Type: text/plain; charset=ISO-8859-1 > > Helloo Dima !!! Hi Nathann, > > Yesterday I went to walk around the Calanques near the University of > Marseille, and it did me good ! I am now wanderin

Re: [sage-combinat-devel] Re: a problem in the new permutation groups code (and a solution ?)

2013-03-26 Thread Nathann Cohen
> As a category, I would imagine we would have a GroupAction category and/or > a GroupWithAction category, which would put some requirements on the group > and its elements. I hate categories T_T Categories is where everything I cherish gets ruined T_T Nathann -- You received this message beca