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 <florent.hiv...@univ-rouen.fr> 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 talk (among other
> things).
>
> > 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: t0=PL(PLT([],'a'))
> > sage: PL.operad_morphism(PL,t0)
> > sage: PL.operad_morphism(DO,t0)
>
> > the last two lines both returns an error related to codomain.
>
> I had a look at your problem. One of the problem came from lazy_attribute in
> operads_with_basis: you cannot use lazy_attribute with a something which takes
> parameters. The role of lazy_attribute is (among other things) to save the
> typing of () such as in PL.one(). One could have used PL.one but this was
> ruled out for interface consistency reason.
>
> Back to your problem, you can't spare a () because you have the codomain. So
> you probably want to write things the following way:
>
>     sage: PL2PL = PL.operad_morphism(PL)   # define the morphism
>     sage: PL2PL(t0)                        # apply it
>     B[a[]]
>     sage: PL2DO = PL.operad_morphism(DO)
>     sage: PL2DO(t0)
>     B[a[None, None]]
>     sage: PL2DO(t0 < t0)
>     -B[a[None, a[None, None]]] + B[a[a[None, None], None]]
>
> Does this makes sens to you ?
>
> I uploaded a patch named operad_morphism_fix-fh.patch which makes the previous
> examples work. Please fold it in yours (after making sure that you don't have
> any uncommited modifications:
>
>     sage -hg pull -u
>     sage -hg qgoto free_operads_fc.patch
>     sage -hg qfold operad_morphism_fix-fh.patch
>
> And then as usual
>
>     cd ../../../.hg/patches
>     sage -hg commit -m "Folded operad_morphism_fix-fh.patch"
>     sage -hg push
>
> I hope this fixes your problems. Just a remark: I checked that the code
> returned a result not that this is indeed the correct result. Please quadruple
> check.
>
> Cheers,
>
> Florent

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