In this article I outline a proof of the theorem (proved in [25]):
Conjecture of Taniyama-Shimura =⇒ Fermat’s Last Theorem.
My aim is to summarize the main ideas of [25] for a relatively wide audience
and to communicate the structure of the proof to non-specialists. The
discussion is inevitably technical at points, however, since a large amount
of machinery from arithmetical algebraic geometry is required. The reader
interested in a genuinely non-technical overview may prefer to begin with
Mazur’s delightful introduction [19] to the Taniyama-Shimura conjecture,
and to relations with Fermat’s Last Theorem and similar problems. Another
excellent alternative source is the Bourbaki seminar of Oesterl´e [21]. This
seminar discusses the relation between elliptic curves and Fermat’s Last Theorem
from several points of view, but gives fewer details about the argument
of [25] than the present summary. See also [11].
The proof sketched here differs from that of [25] in two ways. First of
all, we exploit a suggestion of B. Edixhoven which allows us to prove the
theorem without introducing an auxiliary prime in the proof. Such a prime
is necessary to prove the general result of [25], but turns out to be superfluous
in the case of Galois representations which are “semistable,” but not finite,
In this article I outline a proof of the theorem (proved in [25]):Conjecture of Taniyama-Shimura =⇒ Fermat’s Last Theorem.My aim is to summarize the main ideas of [25] for a relatively wide audienceand to communicate the structure of the proof to non-specialists. Thediscussion is inevitably technical at points, however, since a large amountof machinery from arithmetical algebraic geometry is required. The readerinterested in a genuinely non-technical overview may prefer to begin withMazur’s delightful introduction [19] to the Taniyama-Shimura conjecture,and to relations with Fermat’s Last Theorem and similar problems. Anotherexcellent alternative source is the Bourbaki seminar of Oesterl´e [21]. Thisseminar discusses the relation between elliptic curves and Fermat’s Last Theoremfrom several points of view, but gives fewer details about the argumentof [25] than the present summary. See also [11].The proof sketched here differs from that of [25] in two ways. First ofall, we exploit a suggestion of B. Edixhoven which allows us to prove thetheorem without introducing an auxiliary prime in the proof. Such a primeis necessary to prove the general result of [25], but turns out to be superfluousin the case of Galois representations which are “semistable,” but not finite,
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