Karim Belabas on Thu, 30 Jan 2014 16:58:30 +0100 |
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Re: bnfcertify: missing units in bnf |
* Karim Belabas [2014-01-30 16:20]: > * Karim Belabas [2014-01-30 16:16]: > > The documentation of bnfcertify should clearly specify this (and include > > an example). I'll fix it. > > Also note that bnfcertify(K,1) does not require units [ it certifies that > the true class group is a quotient of the computed one ]. > > Since in your case, K.clgp is already the trivial group, bnfcertify(K,1) > certifies everything there is to certify about K [...] I take this back: K.reg might be an integer multiple of the true regulator... Cheers, K.B. -- Karim Belabas, IMB (UMR 5251) Tel: (+33) (0)5 40 00 26 17 Universite Bordeaux 1 Fax: (+33) (0)5 40 00 69 50 351, cours de la Liberation http://www.math.u-bordeaux1.fr/~kbelabas/ F-33405 Talence (France) http://pari.math.u-bordeaux1.fr/ [PARI/GP] `