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assaferan / ModFrmGL2

Extending magma's implementation of modular symbols to arbitrary congruence subgroups
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GammaNS(15) #1

Closed jvoight closed 4 years ago

jvoight commented 4 years ago

Alas, I couldn't get GammaNS to work with composite N. If this isn't implemented yet, it should say so in the doc. If it is supposed to work, I get

GammaNSplus(15); [...] Runtime error in 'GammaNS' : u must be a nonsquare mod every prime dividing N GammaNSplus(15, Integers(15)!2); [...] Runtime error in 'GF': Argument 1 (15) is not a prime power

assaferan commented 4 years ago

Sorry. Indeed, it hasn't been implemented yet. (for composite N in general) However, now it is.