Timeline for How did Takagi prove Kronecker's Jugendtraum for Q(i)?
Current License: CC BY-SA 3.0
8 events
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Jul 18, 2013 at 4:10 | vote | accept | David Corwin | ||
| Jul 17, 2013 at 18:58 | answer | added | Franz Lemmermeyer | timeline score: 23 | |
| Apr 15, 2013 at 14:24 | comment | added | Ben Wieland | A problem vs KW, maybe small: all non-CFT proofs of KW use the global fact that the cyclotomic Galois group is the product of its ramification groups, as large as possible from the local point of view. CFT says that this is true for no other field. One must show that certain kinds of ramification at one prime are globally possible only with ramification at other primes. Perhaps this is generally easy, but since the unit group is finite, it probably yields to brute force. | |
| Mar 31, 2013 at 23:07 | comment | added | Jonah Sinick | ...because the class number is 1, and the unit group is finite. | |
| Mar 31, 2013 at 21:19 | comment | added | Jonah Sinick | I would imagine that you can mimic the proof of the Kronecker-Weber theorem. | |
| Mar 31, 2013 at 20:34 | history | edited | David Corwin | CC BY-SA 3.0 |
added 9 characters in body
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| Mar 31, 2013 at 18:58 | history | asked | David Corwin | CC BY-SA 3.0 |