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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Frey curve ： ウィキペディア英語版 Frey curve In mathematics, a Frey curve or Frey–Hellegouarch curve is the elliptic curve ::$y^2\; =\; x(x\; -\; a^\backslash ell)(x\; +\; b^\backslash ell)\backslash$ associated with a (hypothetical) solution of Fermat's equation :$a^\backslash ell\; +\; b^\backslash ell\; =\; c^\backslash ell.\backslash$ ==History== came up with the idea of associating solutions (a,b,c) of Fermat's equation with a completely different mathematical object: an elliptic curve. If ℓ is an odd prime and ''a'', ''b'', and ''c'' are positive integers such that :$a^\backslash ell\; +\; b^\backslash ell\; =\; c^\backslash ell,\backslash$ then a corresponding Frey curve is an algebraic curve given by the equation :$y^2\; =\; x(x\; -\; a^\backslash ell)(x\; +\; b^\backslash ell)\backslash$ or, equivalently :$y^2\; =\; x(x\; -\; a^\backslash ell)(x\; -\; c^\backslash ell).\backslash$ This is a nonsingular algebraic curve of genus one defined over Q, and its projective completion is an elliptic curve over Q. called attention to the unusual properties of the same curve as Hellegouarch, which became called a Frey curve. This provided a bridge between Fermat and Taniyama by showing that a counterexample to Fermat's Last Theorem would create such a curve that would not be modular. The conjecture attracted considerable interest when suggested that the Taniyama–Shimura–Weil conjecture implies Fermat's Last Theorem. However, his argument was not complete. In 1985, Jean-Pierre Serre proposed that a Frey curve could not be modular and provided a partial proof of this. This showed that a proof of the semistable case of the Taniyama-Shimura conjecture would imply Fermat's Last Theorem. Serre did not provide a complete proof and what was missing became known as the epsilon conjecture or ε-conjecture. In the summer of 1986, Ribet (1990) proved the epsilon conjecture, thereby proving that the Taniyama–Shimura–Weil conjecture implied Fermat's Last Theorem. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Frey curve」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.