but as I define it over the finite field GF(4)? 2012/6/15 David Joyner <[email protected]>
> On Fri, Jun 15, 2012 at 1:18 PM, Gato <[email protected]> wrote: > > help me please: > > > > > > sage: F.<w>=GF(4,'w') > > sage: R.<X,Y,Z> = ProjectiveSpace(F,2) > > sage: C = Curve(X^2*Y + w*Y^2*Z+ w^2*Z^2*X) > > sage: print C > > Projective Curve over Finite Field in w of size 2^2 defined by X^2*Y + > > (w)*Y^2*Z + (w + 1)*X*Z^2 > > sage: print C.genus() > > 1 > > sage: pts = C.rational_points() > > sage: print pts[4] > > (1 : w : 1) > > sage: print pts[5] > > (w : 1 : 1) > > sage: D = C.divisor([ (2, pts[4]),(1, pts[5]) ]) > > sage: print C.riemann_roch_basis(D) > > > --------------------------------------------------------------------------- > > AttributeError Traceback (most recent call > last) > > > > /home/valpo/Descargas/sage-4.8/<ipython console> in <module>() > > > > > /home/valpo/Descargas/sage-4.8/local/lib/python2.6/site-packages/sage/structure/parent.so > > in sage.structure.parent.Parent.__getattr__ > (sage/structure/parent.c:6249)() > > > > AttributeError: 'ProjectiveCurve_finite_field' object has no attribute > > 'riemann_roch_basis' > > > > > > why?? > > > I think this means that the class ProjectiveCurve_finite_field does > not have the method > riemann_roch_basis implemented. > > See http://www.sagemath.org/doc/constructions/algebraic_geometry.html > for examples. > > > > > -- > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > > http://groups.google.com/group/sage-support > > URL: http://www.sagemath.org > > -- > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/sage-support > URL: http://www.sagemath.org > -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
