4,215 reputation
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bio website math.u-psud.fr/~fouquet
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visits member for 5 years, 5 months
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16h
reviewed Reject Morse number of the Poincaré homology sphere
2d
reviewed Approve References for 'Theory of $p$-adic Galois Representations by Fontaine & Ouyang'
May
6
reviewed Approve Maximize a sum of log of sum
May
6
reviewed Approve A Question about Palindromic Numbers and System of Arithmetic Progression
Apr
24
awarded  Enlightened
Apr
23
awarded  Nice Answer
Apr
23
comment Class field towers
@MarkSapir Hilbert care about class fields because it is easier to prove reciprocity laws at primes splitting completely (and that's why he introduced the class field as field in which principal ideals split completely, and not as an unramified extension as we do today). As I learned from Franz Lemmermeyer (which is the go to guy for these questions), from that it is rather natural to ask what is the class group of a Hilbert class field (because if the Hilbert class field is factorial, then all the better for the proof) and whence the class field tower problem. FLT has nothing to do with it.
Apr
23
comment Class field towers
@MarkSapir No problem, I'm always happy to squash the hope of proving FLT by elementary means ;-).
Apr
23
revised Class field towers
Improved syntax.
Apr
23
answered Class field towers
Apr
22
comment Base change of regular schemes
Check out formally smooth and/or geometrically regular.
Apr
21
comment Is this theorem on $L$-functions known?
@Stabilo This kind of questions is usually more appropriate in a direct discussion with someone knowledgeable. I recommend you contact directly someone in your geographical area (when you do, prepare all the details and be professional).
Apr
21
comment Greenberg and Iwasawa Theory
@AdelLille Done. Have a look at the references as well, you will probably learn a lot.
Apr
21
revised Greenberg and Iwasawa Theory
Added references
Apr
21
reviewed Approve Ideals generated by two elements in the polynomial ring of two variables over a field
Apr
21
reviewed Approve Existence of a measure-preserving bijection
Apr
17
revised A question about Iwasawa Theory
Corrected a math typo and added details.
Apr
17
answered What's the difference between Euler systems and Kolyvagin systems?
Apr
17
revised Greenberg and Iwasawa Theory
Improved TeX
Apr
17
reviewed Approve Renorming into contraction