[過去ﾛｸﾞ] 現代数学の系譜 工学物理雑談 古典ガロア理論も読む79 (1002ﾚｽ)
上下前次1-新
抽出解除 ﾚｽ栞
このｽﾚｯﾄﾞは過去ﾛｸﾞ倉庫に格納されています｡
次ｽﾚ検索 歴削→次ｽﾚ 栞削→次ｽﾚ 過去ﾛｸﾞﾒﾆｭｰ
ﾘﾛｰﾄﾞ規制です｡10分ほどで解除するので､他のﾌﾞﾗｳｻﾞへ避難してください｡
766(2): 現代数学の系譜 雑談 古典ガロア理論も読む ◆e.a0E5TtKE [] 2019/12/29(日) 23:08:10.15 ID:uR3g5aDb(10/13) AAS
>>765
>>765
この日本文は不正確
正確には、下記英文
なお、下記(a, b, c, n)は (a, b, c, p)が正確かもね、y^2 = x (x - a^p)(x + b^p)だからね
https://en.wikipedia.org/wiki/Fermat%27s_Last_Theorem
Fermat's Last Theorem
(抜粋)
Contents
2.5 Connection with elliptic curves
Ribet's theorem for Frey curves
Main articles: Frey curve and Ribet's theorem
In 1984, Gerhard Frey noted a link between Fermat's equation and the modularity theorem, then still a conjecture.
If Fermat's equation had any solution (a, b, c) for exponent p > 2, then it could be shown that the semi-stable elliptic curve (now known as a Frey-Hellegouarch[note 3])
y^2 = x (x - a^p)(x + b^p)
would have such unusual properties that it was unlikely to be modular.[122]
This would conflict with the modularity theorem, which asserted that all elliptic curves are modular.
As such, Frey observed that a proof of the Taniyama?Shimura?Weil conjecture might also simultaneously prove Fermat's Last Theorem.[123]
By contraposition, a disproof or refutation of Fermat's Last Theorem would disprove the Taniyama?Shimura?Weil conjecture.
In plain English, Frey had shown that, if this intuition about his equation was correct, then any set of 4 numbers (a, b, c, n) capable of disproving Fermat's Last Theorem, could also be used to disprove the Taniyama?Shimura?Weil conjecture.
Therefore if the latter were true, the former could not be disproven, and would also have to be true.
つづく
767(1): 現代数学の系譜 雑談 古典ガロア理論も読む ◆e.a0E5TtKE [] 2019/12/29(日) 23:08:38.66 ID:uR3g5aDb(11/13) AAS
>>766
つづき
Following this strategy, a proof of Fermat's Last Theorem required two steps.
First, it was necessary to prove the modularity theorem ? or at least to prove it for the types of elliptical curves that included Frey's equation (known as semistable elliptic curves).
This was widely believed inaccessible to proof by contemporary mathematicians.[121]:203?205, 223, 226
Second, it was necessary to show that Frey's intuition was correct: that if an elliptic curve were constructed in this way, using a set of numbers that were a solution of Fermat's equation, the resulting elliptic curve could not be modular.
Frey showed that this was plausible but did not go as far as giving a full proof.
The missing piece (the so-called "epsilon conjecture", now known as Ribet's theorem) was identified by Jean-Pierre Serre who also gave an almost-complete proof and the link suggested by Frey was finally proved in 1986 by Ken Ribet.[124]
(引用終り)
以上
769: 現代数学の系譜 雑談 古典ガロア理論も読む ◆e.a0E5TtKE [] 2019/12/29(日) 23:28:45.24 ID:uR3g5aDb(13/13) AAS
>>766
もとは、フライ曲線は、
y^2 = x (x - a^p)(x + b^p) p > 2
だったけど
abc予想では、 p = 1
なんだ
それで、楕円曲線の理論と関連が付くんだね
ようやく、分かったわ（＾＾；
上下前次1-新書関写板覧索設栞歴
ｽﾚ情報 赤ﾚｽ抽出 画像ﾚｽ抽出 歴の未読ｽﾚ AAｻﾑﾈｲﾙ
ぬこの手 ぬこTOP 0.038s