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555(1): 現代数学の系譜 雑談 ◆yH25M02vWFhP [] 2020/10/20(火) 08:07:05.29 ID:V6fYxSC9(4/8) AAS
>>554
つづき
>※ We have also found the synthetic and selfcontent [Yam17] to be particularly helpful as a bridge between [Alien] and the “canon”.

そうか、この[Alien]っていうのが、重要な論文なんだね〜（＾＾
P4
[Alien]：
[Alien] S. Mochizuki, “The mathematics of mutually alien copies: From Gaussian integrals to Inter-universal
Teichmuller theory,” RIMS Preprint no. 1854, 169p. Jul. 2016, Eprint available on-line.

http://www.kurims.kyoto-u.ac.jp/~motizuki/papers-japanese.html
望月 論文

http://www.kurims.kyoto-u.ac.jp/~motizuki/Alien%20Copies,%20Gaussians,%20and%20Inter-universal%20Teichmuller%20Theory.pdf
[7] The Mathematics of Mutually Alien Copies: from Gaussian Integrals to Inter-universal Teichmuller Theory. PDF
　　NEW !! (2020-04-04)

Abstract
Inter-universal Teichm¨uller theory may be described as a construction of certain
canonical deformations of the ring structure of a number field
equipped with certain auxiliary data, which includes an elliptic curve over the number field
and a prime number ? 5. In the present paper, we survey this theory by focusing on the
rich analogies between this theory and the classical computation of the Gaussian integral.
The main common features that underlie these analogies may be summarized as follows:
・ the introduction of two mutually alien copies of the object of interest;
・ the computation of the effect -i.e., on the two mutually alien copies of the object of interest -of two-dimensional changes of coordinates by considering the effect on infinitesimals;

つづく

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556: 現代数学の系譜 雑談 ◆yH25M02vWFhP [] 2020/10/20(火) 08:07:21.50 ID:V6fYxSC9(5/8) AAS
>>555
つづき

・ the passage from planar cartesian to polar coordinates and the resulting splitting, or decoupling, into radial -i.e., in more abstract valuation-theoretic terminology, “value group” -and angular -i.e., in more abstract valuation-theoretic terminology, “unit group” -portions;
・ the straightforward evaluation of the radial portion by applying the quadraticity of the exponent of the Gaussian distribution;
・ the straightforward evaluation of the angular portion by considering the metric geometry of the group of units determined by a suitable version of the natural logarithm function.

[Here, the intended sense of the descriptive “alien” is that of its original Latin root, i.e., a
sense of abstract, tautological “otherness”.] After reviewing the classical computation
of the Gaussian integral, we give a detailed survey of inter-universal Teichm¨uller theory by
concentrating on the common features listed above. The paper concludes with a discussion
of various historical aspects of the mathematics that appears in inter-universal Teichm¨uller theory.
(引用終り)
以上

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