I have produced a new Sage package (
http://www.algorithm.uni-bayreuth.de/de/team/Feulner_Thomas/codecan-1_0_spkg.zip)
which applies to Sage 5.11.
Now, for the current version 5.12 of Sage the source code results in some
runtime errors, which I would like to fix (there are only a few lines I
ha
The ticket #13726 on semimonomial transformation group is merged into
sage-5.13.beta.
Now, the last step would be to find a reviewer for #13771...
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Am Samstag, 5. Oktober 2013 15:50:46 UTC+2 schrieb Volker Braun:
>
> On Saturday, October 5, 2013 2:03:57 PM UTC+1, David Joyner wrote:
>>
>> My vote would be to certainly allow it to be an experimental package.
>>
>
> There isn't really too much need for additional work here, what I'm seeing
>
Thanks for all your help.
@Volker: You are right, the names are terrible. I will change them. There
is no need to have LinearCode_AutGroupCanLabel in the global namespace. I
think LinearCode should have a member of this type, but I was not sure if
this goes well together with an experimental/o
The last post to this thread is 2 years old, but I have continued my work
on canonical forms for linear codes.
I have followed up Dima`s proposal and prepared a package, which is
entirely written in Python/Cython, since there is no one willing to review
my tickets on the same topic.
This new p
Hi,
I fixed a bug in the apply_map method for sparse vectors, see #14558. The
patch does only contain a few lines. Maybe someone is able to review it?
Thanks
Thomas
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Hi Simon,
thank you very much for your help. This was the solution! (and that I
should not pass names=None to
QuotientRing_nc.__init__ ;-) )
@Volker:
I hope that ParentWithGens will be removed soon. For a beginner, it is
really hard to figure out how to define
derived classes, especially when y
Hi Simon,
Am Freitag, 5. Juli 2013 12:26:19 UTC+2 schrieb Simon King:
>
> Hi Thomas,
>
> On 2013-07-04, Thomas Feulner >
> wrote:
> > I am trying to build a class which derives from Parent and
> QuotientRing_nc
> > at the same time.
I want to inherit
I am trying to build a class which derives from Parent and QuotientRing_nc
at the same time. Here is a minimal example:
sage: from sage.structure.parent import Parent
sage: from sage.categories.all import Category, FiniteEnumeratedSets,
CommutativeRings
sage: from sage.rings.quotient_ring import
This is now
http://trac.sagemath.org/sage_trac/ticket/14534
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To post to t
When composing a ``RingHomomorphism`` and an instance of
``RingHomomorphism_im_gens`` then
the images of the generators are again checked for their validity, see
rings/morphism.pyx:
def _composition_(self, right, homset):
from sage.all import Rings
if homset.homset_category().is_
An update:
The ticket
http://trac.sagemath.org/sage_trac/ticket/13304
does not solve this problem.
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Hi,
I am working on linear codes and I observed a high memory consumption when
constructing codes of large length. I figured out that this problem already
appears in the construction of vector spaces:
sage: F. = GF(4)
sage: M = MatrixSpace(F, 8, 1).random_element()
sage: V = VectorSpace(F,
Hi,
in the definition of a QuotientRing there is the following assumption
ASSUMPTION:
``I`` has a method ``I.reduce(x)`` returning the normal form
of elements `x\in R`. In other words, it is required that
``I.reduce(x)==I.reduce(y)`` `\iff x-y \in I`, and
``x-I.reduce(x) in I
On 16 Mai, 10:18, Volker Braun wrote:
> You are piping strings to/from GAP, are you?
Yes, that is exactly what I am doing.
> Depending on how often you end
> up using GAP internally you might be interested in a shared-library
> interface to GAP. We do have an experimental one,
> seehttp://tra
On 14 Mai, 17:40, Dima Pasechnik wrote:
> On May 13, 7:18 pm, Thomas Feulner
> wrote:
>
>
>
> > Hi,
>
> > On 7 Mai, 07:04, Dima Pasechnik wrote:
>
> > > On May 6, 9:12 pm, David Joyner wrote:
>
> > > > Hi:
>
> > >
Hi,
On 7 Mai, 07:04, Dima Pasechnik wrote:
> On May 6, 9:12 pm, David Joyner wrote:
>
>
>
> > Hi:
>
> > The contribution at #10153 byThomasFeulneris huge and,
> > IMHO, important. It basically generalizes what Robert Miller did for
> > automorphisms of codes in the binary case to the non-binary
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