Thanks,
another workaround is to use
(f2*f1).post_compose(f3)
which also works.
The same problem when composing the homogenization of these morphisms.
I will add this to trac, unless someone else intervenes :)
On Tuesday, November 18, 2014 2:47:33 PM UTC+1, John Cremona wrote:
>
> On 18 November
On 18 November 2014 13:38, Soli vishkautsan wrote:
> I am trying to compose 3 affine automorphisms of the Markoff surface.
> The following code produces an error:
>
> A. = AffineSpace(QQ,3)
> M = A.subscheme([x^2+y^2+z^2-3*x*y*z])
> H = Hom(M,M)
> f1 = H([3*y*z-x,y,z])
> f2 = H([x,3*x*z-y,z])
> f3
I am trying to compose 3 affine automorphisms of the Markoff surface.
The following code produces an error:
A. = AffineSpace(QQ,3)
M = A.subscheme([x^2+y^2+z^2-3*x*y*z])
H = Hom(M,M)
f1 = H([3*y*z-x,y,z])
f2 = H([x,3*x*z-y,z])
f3 = H([x,y,3*x*y-z])
f3*f2*f1
What am I doing wrong?
--
You receive
