D4=QuadraticForm(Matrix(ZZ,4,4,[2,0,0,-1,0,2,0,-1,0,0,2,-1,-1,-1,-1,2])) G=D4.global_genus_symbol()
sage.quadratic_forms.genera.genus.is_GlobalGenus(G) G==copy(G) sage.quadratic_forms.genera.genus.is_GlobalGenus(G) Another instance of the same problem: D4=QuadraticForm(Matrix(ZZ,4,4,[2,0,0,-1,0,2,0,-1,0,0,2,-1,-1,-1,-1,2])) G=D4.global_genus_symbol() G._local_symbols[0].excess() G==copy(G) G._local_symbols[0].excess() the second answer is wrong here. The problem seems to originate somewhere in sage.quadratic_forms.genera.genus.Genus_Symbol_p_adic_ring.canonical_symbol -- 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 post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
