#Author Georgi Guninski K.<x,y,z,t>=QQ[] t1=x^2*z^2 + y*t; t2= y*z^2 + x^2*t; C=Curve([x^4-y^2-19,z^4-t^2-23,t1^2-t2^2-19*23]); C.genus() #93 #Wrong
C.irreducible_components() [ Closed subscheme of Affine Space of dimension 4 over Rational Field defined by: z^4 - t^2 - 23, x^4 - y^2 - 19 ] Magma raises error when trying to construct Curve() When I work over GF(113) instead of QQ, I get error: RuntimeError: error in Singular function call 'genus': This is not a curve leaving normal.lib::genus (0) -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAGUWgD_1UNme-gKZBNtwFBmYok6hqNEwT_e-PFpPMKsHDtsJnA%40mail.gmail.com.
