[sage-combinat-devel] post-doc proposal in Strasbourg

Dear all, there is a post-doctoral position opening in Strasbourg very soon : http://www-irma.u-strasbg.fr/~chapoton/postdoc-idex-2016-2017.html between algebraic combinatorics and representation theory. Could you please help me and pass the word, if you know some potentially interested young

[sage-combinat-devel] Re: Patchbot's PluginFailed plugins.startup_modules failure

Hello, this may be caused by the fact that currently the "develop" branch is 6.10, which is also "base", ie not a beta release. The patchbot has some troubles every time one reaches this situation. You can probably safely ignore it. Having a green light is not mandatory, and the bot is only ther

[sage-combinat-devel] Fulbright award for a stay in Lyon

Hello, dear combinatorists, I would like to advertise that the Fulbright foundation has recently open a call http://catalog.cies.org/viewAward.aspx?n=6208&dc=FR for two grants. Among the possible places and themes, there is "*algebraic combinatorics*" at the "*Institut Camille Jordan*" in Lyo

[sage-combinat-devel] Re: Import error using recusive trees

Hello, And it fact, something like Butcher series is also waiting in ticket #15635 This depends of course on #11529, which is currently blocked by ticket #10194 I have tried to work on #10194, but the author has not answered my questions so far. If somebody in his university could ask him to

[sage-combinat-devel] post-doctoral position in Lyon

Hello everybody, there is a post-doctoral position in algebraic combinatorics opening in Lyon (France) next September. Details can be found here: http://math.univ-lyon1.fr/~chapoton/postdoc2015-2016.html Please pass the word to people you know that could be interested. Lyon is a nice city, an

[sage-combinat-devel] Re: combinat is not pep8 compliant

After ticket #17270, with a more modern pep8, one gets ['2 E122 continuation line missing indentation or outdented', "2 E123 closing bracket does not match indentation of opening bracket's line", '2 E703 statement ends with a semicolon', '4 E124 closing bracket does not

[sage-combinat-devel] Re: combinat is not pep8 compliant

The same in increasing order of number of occurences ["4 W601 .has_key() is deprecated, use 'in'", '16 E222 multiple spaces after operator', "17 E202 whitespace before ')'", '18 E301 expected 1 blank line, found 0', '18 E702 multiple statements on one line (semicolon)

[sage-combinat-devel] combinat is not pep8 compliant

Here is the result of running pep8 on the combinat folder : 35 E111 indentation is not a multiple of four 499 E201 whitespace after '(' 17 E202 whitespace before ')' 52 E203 whitespace before ':' 57 E221 multiple spaces before operator 16 E222 multiple spaces after ope

[sage-combinat-devel] removal of sage -combinat scripts ?

Dear sage-combinat participants, currently, sage ships with broken scripts that were used to install the mercurial version of the sage-combinat queue. This should be cleaned. In http://trac.sagemath.org/ticket/15628, I have prepared the complete removal of these scripts. Also http://trac.sagem

[sage-combinat-devel] Re: fractional powers of a variable

Hello, There are some tickets about Puiseux series and Puiseux polynomials awaiting on trac: #9289 and #4618 http://trac.sagemath.org/query?status=!closed&keywords=~Puiseux But they are not ready to use, as far as I know. Fred Le mardi 15 avril 2014 19:19:25 UTC+2, Mark Shimozono a écrit : >

[sage-combinat-devel] Re: StandardTableaux broken

Salut Jean-Yves chez moi, je n'ai pas ton problème non plus quelle version de sage tu as ? tape "version()" pour voir tu peux me telephoner au boulot si tu veux (voir mon tel sur http://math.univ-lyon1.fr/~chapoton/) Fred Le mardi 15 octobre 2013 16:23:14 UTC+2, Jean-Yves Thibon a écrit : > >

[sage-combinat-devel] Re: axiom.py

Hello when you install sage-combinat, you create a clone of sage-main, with the name sage-combinat. So you will find exactly the same things inside sage-combinat as there is inside sage-main. And of course more, because of the special patches applied to this branch (i.e. clone) Concerning the

[sage-combinat-devel] Re: latex error for LabelledBinaryTrees

Hello, maybe the argument of line (-8,-1) is too much negative ? http://texdoc.net/texmf-dist/doc/latex/layouts/layman.pdf One could try to make all the coordinates positive.. Frederic Le lundi 16 septembre 2013 05:07:30 UTC+2, Anne Schilling a écrit : > > Hi Florent, Federic, ... ! > > I hav

[sage-combinat-devel] orphan patches / empty patches

In the combinat queue, there are some empty patches ram_yip_macdonald_koornwinder-ms.patch representation_theory-av.patch (and maybe some others) Maybe we can ask the owners the permission to remove these patches ? There are also some orphan patches: trac_11571_catalan_objects-nm.patch Maybe

[sage-combinat-devel] patchbot seems to be broken

It seems that the patchbot currently does not work. More precisely, it does nnot know where to stop in the dependencies to be applied, and tries to apply very old (and since long included) dependencies Just one example among many : http://patchbot.sagemath.org/ticket/8388/ Patchbot is a great

[sage-combinat-devel] Re: Quiver algebras: Should the invalid path be *equal* to zero?

I vote for 1. The invalid path maps to the zero of the algebra, since you have chosen to linearise the free category into an algebra, that's the logical thing to do -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from

Re: [sage-combinat-devel] cristallographic takes two l

Yes indeed, and that is what I have done in the patch. Sorry for the mistake here. Le vendredi 31 mai 2013 22:44:37 UTC+2, Anne Schilling a écrit : > > Hi Frederic, > > If you want the English spelling, I think it is "crystallographic". > > Best, > > Anne > > On 5/31/13 12:41 PM, Fr�d�ric

[sage-combinat-devel] cristallographic takes two l

And it is spelled in sage/combinat with just one ! I have made a (little bomb) patch at http://trac.sagemath.org/sage_trac/ticket/14673 turning everything to cristallographic I think this is necessary, but I am afraid it may cause a lot of trouble in the combinat queue Opinions ? Frederic

[sage-combinat-devel] Re: questions on sorting of terms

Hello, merci ! Ca a l'air de marcher. A bientot, Frédéric Le lundi 14 janvier 2013 10:38:05 UTC, Frédéric Chapoton a écrit : > > Hello, > > I would like to change the default ordering of terms in some Modules with > basis, for the purpose of changing leading_term. > &g

[sage-combinat-devel] questions on sorting of terms

Hello, I would like to change the default ordering of terms in some Modules with basis, for the purpose of changing leading_term. More precisely, I would like to use my own term-orders for some free modules on LabelledOrderedTrees, a bit like the choice of term orders on polynomials algebras

[sage-combinat-devel] Re: Hopf Algebra(s) -> FQSym, WQSym, PQSym... PBT (Ticket #13793 and #13855)

Well, this is not exactly true, as the latex method is not modified in my patch. I only introduce new methods (written just before the latex method indeed) Is there any conflict with my patch when you apply the queue in full ? does it say that it need to be rebased ? or is there just a hunk ?

[sage-combinat-devel] conflicts in 5.5.rc0

Hello on 5..5.rc0, with the latest sage-combinat queue fully applied, I got the following error at start: 265 import sys 266 sys.path.append('/Users/andrew/Sage') --> 267 from utility import trace_function 268 269 ImportError: No module named utility Of course, I have no dire

[sage-combinat-devel] Re: about #8386 and plugins.startup_modules

iet.sage > sage.combinat.iet.strata > > > On Friday, October 26, 2012 2:38:53 PM UTC+1, Frédéric Chapoton wrote: >> >> Hello, >> >> the "ancient" ticket #8386 is almost good to go, except an annoying >> problem with the >> plugins.start

[sage-combinat-devel] about #8386 and plugins.startup_modules

Hello, the "ancient" ticket #8386 is almost good to go, except an annoying problem with the plugins.startup_modules, which compla

[sage-combinat-devel] Re: mutable trees

Il faut utiliser "with" comme ca : with T.clone() as TT: TT[chemin[:-1]]=trees([],None) Tant qu'on est dans le "with" l'arbre est mutable Frederic Le lundi 3 septembre 2012 18:57:51 UTC+2, Viviane Pons a écrit : > > Hi everyone, > > I'm trying to work with trees but I find them q

[sage-combinat-devel] doc of patchbot

Hello everybody, what is the meaning of the number on the left of every line in the patchbot report : example : 0 [image: New] 8908 Add the Young subgroup method to symmetric groups needs_review see here for the context : http://patchbot.sagemath.o

Re: [sage-combinat-devel] Re: Names for the bases of symmetric functions

sage: Sym.e() Symmetric Functions over Rational Field in the elementary basis This is my vote, for coherence with the rest of Sage, using long descriptions in natural language Frederic > > -- You received this message because you are subscribed to the Google Groups "sage-combinat-d

Re: [sage-combinat-devel] Re: doctest failures

ouarf.. :) damned ! Bon, bon, je ne sais pas trop quoi dire. Il faudrait retrouver le fichier "sage" et le remettre la ou il doit etre, i.e. dans le repertoire home/matthieu/sage-5.1. Si tu l'as effectivement effacé, une maniere serait peut-etre juste de re-decompacter le .tar *ailleurs*, et

Re: [sage-combinat-devel] Re: doctest failures

Hum.. Il faut repartir du ficher .tar, le decompresser a nouveau dans un chemin sans accent, et recommencer la compilation. L'idee est que chaque tentative de compilation modifie des choses, et laisse des traces. Il vaut mieux faire table rase des erreurs passées.. Fred Le vendredi 27 juillet

[sage-combinat-devel] Re: doctest failures

Salut Matthieu, il ne faut pas d'accents dans le chemin de sage : le mot Thèse avec un accent pose probleme, je crois... ressaye d'installer dans un repertoire sans accent. Fred Le jeudi 19 juillet 2012 21:54:53 UTC+2, Martin a écrit : > > I just wanted to test whether some experimental change

[sage-combinat-devel] Re: Chromatic Symmetric Function ... Function

Hello, Well, this looks like a very interesting thing to add to sage. I am sure that the graph-guys around here would be enthousiastic, were it not for the summer vacations.. Could you open a ticket on trac for that ? and prepare and upload a patch ? Do you need help to do that ? http://trac.

[sage-combinat-devel] Re: rebasing your patches

Hello Anne, my patch trac_13088_paley_graphs-fc.patch #+5_2_rc0 needs rebase on 5_2_rc0!!! has been merged in 5.2rc0. see : http://trac.sagemath.org/sage_trac/ticket/13088 Should I simple delete it from the queue ? Frederic Le mercredi 25 juillet 2012 00:57:19 UTC+2,

[sage-combinat-devel] how to rebase a patch ?

Hello, I was told to rebase a patch (namely http://trac.sagemath.org/sage_trac/ticket/13067) by the release manager. What is the procedure to do that ? I have not found it on the mercurial guide (http://wiki.sagemath.org/combinat/MercurialStepByStep). I have only a rather basic understanding o

[sage-combinat-devel] Re: symmetric functions

Well, there should be no problem with my patch, as it does just create a new file and does not touch anything else. The need for a merge was triggered because you did not update sage-combinat before commiting. This is normal and rather harmless, unless two persons work on the same files at the

[sage-combinat-devel] import statement strange behaviour

Hello, trying to test my own files on sage 5.0, it seems that it takes many import statements. Some of them behave strangely : sage: import_statements(euler_phi) from sage.rings.arith import Number of positive integers <=n but relatively prime to n sage: import_statements(QQ) from sage.

Re: [sage-combinat-devel] breakage of k-Schur function code

Hello, I have the same problem, with 5.0 beta8 : /home/chapoton/sage-5.0.beta8/spkg/bin/sage: line 308: 2466 Erreur de segmentation sage-ipython "$@" -i Frederic Le lundi 23 avril 2012 18:16:52 UTC+2, Anne Schilling a écrit : > > Thank you! But now sage won't even start any longer for me wit

Re: [sage-combinat-devel] Re: a problem with cartesian product of directed graphs ?

Le mercredi 28 mars 2012 23:14:33 UTC+2, Nicolas M. Thiery a écrit : > > On Wed, Mar 28, 2012 at 05:03:37AM -0700, Fr�d�ric Chapoton wrote: > >If somebody can cross-post to sage-devel, it would be great, yes. > > Done. > > >Should I create another ticket for products of posets ? > > P

[sage-combinat-devel] Re: a problem with cartesian product of directed graphs ?

This is now Ticket #12770 If somebody can cross-post to sage-devel, it would be great, yes. Should I create another ticket for products of posets ? Frederic -- You received this message because you are subscribed to the Google Groups "

[sage-combinat-devel] a problem with cartesian product of directed graphs ?

Hello, I have found the following wrong behaviour on sage 4.8, without sage-combinat sage: P=DiGraph([[0,1]]) sage: Q=P.cartesian_product(P) sage: len(Q.edges()) 0 The result is a disconnected union of 4 points. This should be a directed square, with 4 edges. Maybe this i

[sage-combinat-devel] Re: problem with inversions for Weyl group in 5.0 beta8

Here is a correct version. I am not currently able to post patches (still working with 4.7.1 here..) def inversions(self): """ EXAMPLES:: sage: W = WeylGroup(['A',3]) sage: w = W.from_reduced_word([1,2,1]) sage: w.inversions() [(0, 1, -1, 0, 0, 0), (1

[sage-combinat-devel] problem with inversions for Weyl group in 5.0 beta8

Hello, Trying to use inversions for elements of Weyl groups, I found that it exists, but does not work, and is badly documented and tested. In which patch is this located ? Frederic sage: W=WeylGroup(['A',3]) sage: w=W.from_reduced_word([1,2,1]) sage: w.inversions() AttributeError: 'WeylGroup

[sage-combinat-devel] coercion from NCSF to FQSYM

Hello everyone, It seems that both NCSF (NonCommutativeSymmetricFunctions) and FQSYM (FreeQuasisymmetricFunctions) are now implemented in sage-combinat. I would need the natural inclusion from NCSF to FQSYM. I am right to say that it is not yet available ? I do not understand coercion well- enoug

[sage-combinat-devel] Re: errors when installing sage combinat.

Hello, Well, I am not an expert, but I see chinese characters in your path to sage. Maybe you should try in a path with only roman (ascii) characters. This is suggested by the sentence : 'ascii' codec can't decode byte Tell me if this changes something ! Yours, Frederic On 12 août, 04:03, jia

[sage-combinat-devel] Re: Species: Seriell-parallel networks

Here is a try Z=species.SingletonSpecies() E2=species.SetSpecies(min=2) P=CombinatorialSpecies() S=CombinatorialSpecies() P.define(E2.composition(Z+S)) S.define(E2.composition(Z+P)) N=Z+P+S That seems to work : sage: koko=N.generating_series().coefficients(8) sage: [koko[i]*factorial(i) for i in

[sage-combinat-devel] bug when replacing a full tree

I have found the following bug. When one tries to replace a full tree by another tree, using the *empty path* as an adress, this does not work. sage: lt=LabelledOrderedTrees() sage: toto=lt([lt([lt([],None)],None)],None) sage: titi=lt([lt([],'a')],'a') sage: toto[()] None[None[None[]]] sage: with

[sage-combinat-devel] Re: operad morphisms and codomain

Merci beaucoup ! I will take care of the folding and try to clean up as soon as I can. Frederic On 1 juil, 23:23, Florent Hivert wrote: >       Hi Fr d ric, > > Sorry for not answering sooner. I was giving a talk at Strasbourg at Kurush > and Frederic F. conference). So I was busy preparing my

[sage-combinat-devel] operad morphisms and codomain

Hello, I have tried to implement a morphism of operads (from the PreLie operad to the Dendriform operad) but I have some problem with codomains. Could somebody help ? with my patch "free_operads_fc.patch" applied : sage: PL=PreLieOperad(QQ) sage: DO=DendriformOperad(QQ) sage: PLT=PL.basis().keys

[sage-combinat-devel] Re: Rejection on trac_10335-permgroup_domain-mh.patch

Hello Hugh, I have the same problem. As far as I understand, this should be solved by Mike. One can only wait and hope. cheers, Frederic On 1 juin, 04:54, Hugh Thomas wrote: > Dear friends of the queue-- > > With sage-4.6.2, running sage -combinat update, I got: > > applying trac_10335-permgro

[sage-combinat-devel] Re: questions on patch for trac_10167

That's ok for me too. On 18 mar, 17:41, Christian Stump wrote: > Hi, > > > For some calculations with monoids last week, I started creating the > > Posets category, in preparation for later having several classes for > > posets, including infinite/lazy/... (see e.g. #10783) #10777 could > > also

[sage-combinat-devel] Re: questions on patch for trac_10167

Salut Nicolas, ok, tu as le feu vert pour modifier mon patch pour enlever la dependance. I think the method auslander_reiten_matrix should really be called *coxeter_transformation*, because this is the usual name. One speaks of the Auslander-Reiten functor, but this is not the same thing. Once y

[sage-combinat-devel] questions on patch for trac_10167

Hi, I would like to understand if there is any reason why my patch trac_10167-posets_Jposet_ARmatrix_fc.patch is placed in the "experimental section" ? I would like to have it just after the following patches, since it's on the same subject. trac_10065_smaller_poset_improvements-cs.patch trac_6

[sage-combinat-devel] Re: first version of a cluster algebra package

Hello Christian, first, thanks a lot for your hard job on many interesting topics. This is certainly a useful thing to have clusters here. I would have a suggestion, but I have not checked whether you have already done that : define the fan associated with the cluster complex. I am not really sur

[sage-combinat-devel] Re: wrong behaviour of Set

setting and the Poset setting (which I do not find very easy to use, by the way) Frederic On 2 fév, 13:11, Mike Hansen wrote: > Hello, > > 2011/2/2 Frédéric Chapoton : > > > > > Here is a little more detail, a reduced example, coming from the > > problem above. > >

[sage-combinat-devel] Re: wrong behaviour of Set

Salut, it will take a lot of place to give here all the procedures needed to enable you to run this example. This is ok for me, but this is maybe not the place for this ? Here is a little more detail, a reduced example, coming from the problem above. sage: kiki {B[[1, 0, 1, 1, 0, 1, 0, 1, 0, 0]]

[sage-combinat-devel] wrong behaviour of Set

I have found the following problem. sage: Set([len([v for v in mySet if v==u]) for u in mySet]) {1, 2} sage: type(mySet) So we have here a *set with repetitions*. This happens for a very specific set mySet which contains linear combinations of elements of a rather big poset. sage: type(mySet[0]

[sage-combinat-devel] Re: Several trivial reject in the queue

Salut, je suis supposé faire quoi ? Comment je peux savoir pourquoi le patch trac_10167-posets_Jposet_ARmatrix_fc.patch pose probleme ? Frédéric On 22 jan, 16:40, Florent Hivert wrote: >       Hi there, > > I just put a guard on the following patches: > > add_demo_how_to_contribute--foldme--sl.

[sage-combinat-devel] Re: Posets in Sage

Hi Christian, I have just folded your small patch into mine. I hope I did this in a correct way (I then removed your patch) I have no idea on the correct design for posets. I am just happy to have some working setting, even if it is more slow than it could be. Best, Frederic On 7 nov, 22:40,

[sage-combinat-devel] Re: Posets in Sage

Salut Nicolas, Merci, thanks a lot. This is very useful and of course, this saves me a lot of work. Frederic On 3 nov, 18:40, "Nicolas M. Thiery" wrote: > On Wed, Nov 03, 2010 at 09:57:56AM -0700, Fr d ric Chapoton wrote: > > By the way, do you know if there is a way in Sage to try something on

[sage-combinat-devel] Re: Posets in Sage

Hi Christian, well, I have not yet uploaded this patch to track, because I do not feel very confident (the procedure seems too complicated to me..) If somebody has some time to help.. By the way, do you know if there is a way in Sage to try something on all posets of size 6, 7 or even 8 ? I think

[sage-combinat-devel] Re: Posets in Sage

Hello Christian, Yes, everything works fine now. Too bad that one has to trade speed against that.. Should I upload to trac my patch for trac Ticket #10167 ? Fred On 25 oct, 20:57, Christian Stump wrote: > Salut, > > > ok, order ideal now works. But my procedure order_ideal_lattice is > > still

[sage-combinat-devel] Re: Posets in Sage

Hi Christian, ok, order ideal now works. But my procedure order_ideal_lattice is still broken. Here is where the problem sits: B = Posets.BooleanLattice(4) B.order_ideal(B.antichains()[1]) This does not work. Should not we be able to take the order ideal of an antichain ? Concerning your genera

[sage-combinat-devel] Re: Posets in Sage

Hi, Nicolas Ok, I have made a trac ticket #10167: enhancement: three new methods in Poset (new) for the three following things 1) the poset of order ideals (already in patch posets_Jposet_ARmatrix_fc.patch ) 2) the poset of join irreducibles (your program) 3) the coxeter transformation (alrea

[sage-combinat-devel] Re: disabling

Hello, I have been trying to install sage 4.5.2 and sage combinat on various computers recently and got problems with triangle_graphs. Are you sure that you have solved the problem you were talking about ? Here is the last part of what appears when I run sage, after installing sage-combinat : /h

[sage-combinat-devel] Re: root system : positive root function

n true for positive roots, but for positve linear combinations of positive roots.. And the behaviour is not coherent, which was the cause of my initial problem. Somebody has an idea for a better name ? Frederic On 14 juin, 13:54, Frédéric Chapoton wrote: > Hi, > > I have found the followin

[sage-combinat-devel] root system : positive root function

Hi, I have found the following strange behaviour : sage: A3=RootSystem(['A',3]).ambient_space() sage: t=A3.simple_root(1)+A3.simple_root(2)-A3.simple_root(3) sage: t.is_positive_root() True It seems that the function is_positive_root() does not check that its input is a root ! I think the actua

[sage-combinat-devel] need concerning symmetric functions

Hello, I would appreciate very much if somebody could add the following thing to the symmetric functions in sage. Mostly this is just a variant of the omega function, which is implemented by transposition of partitions in the schur basis. The point is that I just do not dare to do it myself... Thi