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Apr 13, 2017 at 12:58 history edited CommunityBot
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Apr 12, 2012 at 9:44 comment added Guillermo Mantilla @Alex: This is really a great answer!
Mar 30, 2012 at 13:56 comment added Alex B. Thank you, Frank, for the kind words! Actually, you are quite right: the proof of the conductor-discriminant formula is the same so-called Artin formalism.
Mar 30, 2012 at 13:42 comment added Frank Thorne One question about your "final remark": My impression of the proofs is that the proof of the relations among Artin $L$-functions is quite similar to that of the conductor-discriminant formula (at least, the proofs given in Neukirch). Although the c-d formula can be proved without Artin $L$-functions, these $L$-function relations seem to be the biggest, most useful hammer in the toolbox. However I am not an expert in the subject (and evidently you are!) If you think my perspective is at all misleading, would you please explain? Thank you very much!
Mar 30, 2012 at 13:35 vote accept Frank Thorne
Mar 30, 2012 at 5:23 history edited Alex B. CC BY-SA 3.0
added 186 characters in body; added 64 characters in body
Mar 30, 2012 at 5:17 history answered Alex B. CC BY-SA 3.0