Hello, I have been computing modular symbols for distinct curves on the Cremona data base. But, in a few curves, I recived a WARNING messages like this:
Warning : Could not normalize the modular symbols, maybe all further results will be multiplied by -1, 2 or -2. Why sage does not give the exact normalization? Is there a theoretical reason? How sage normalize modular symbols? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
