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,
Salut Fred and everyone else as well,
> 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..
First of all, I would really suggest, we do reorganize the poset
implementation: lo
Salut Fred and everyone else as well,
> 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..
First of all, I would really suggest, we do reorganize the poset
implementation: lo
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
> 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..
I gonna have a look at it, but please give me some days...
Best, Christian
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On Wed, Nov 03, 2010 at 09:57:56AM -0700, Frédéric Chapoton wrote:
> 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 Stembridge has something
> like that in M*ple. I am tempted to try to convert his algorithm, but
> I would prefer
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
Hi Fred,
> 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 ?
I think you can.
I will try to get the speed improvements running at some point.
Best, Christian
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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
Salut,
> 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 ?
Can you check i
On Mon, Oct 25, 2010 at 05:54:30AM -0700, Christian Stump wrote:
> The second point is the existence of the two classes Poset and
> HasseDiagram. Many things are computed in HasseDiagram and then only
> taken in Poset from there. I made some tests in this direction and
> this talking between the tw
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
> > Whereas points 2) and 3) are ok, point 1) seems to be broken right
> > now.
I hope, the bug is solved. Could you please recheck.
I also moved all recent work on posets by Franco and myself
together...
Christian
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> 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 (
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
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