純粋・応用数学・数学隣接分野（含むガロア理論）21 (392ﾚｽ)
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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｡

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33(1): 現代数学の系譜 雑談 ◆yH25M02vWFhP 07/21(月)23:47 ID:60RWf/A5(9/9) AAS
つづき

外部ﾘﾝｸ:en.wikipedia.org
Leech lattice
In mathematics, the Leech lattice is an even unimodular lattice Λ24 in 24-dimensional Euclidean space, E24. It is one of the best models for the kissing number problem. It was discovered by John Leech (1967). It may also have been discovered (but not published) by Ernst Witt in 1940.
Applications
The vertex algebra of the two-dimensional conformal field theory describing bosonic string theory, compactified on the 24-dimensional quotient torus R24/Λ24 and orbifolded by a two-element reflection group, provides an explicit construction of the Griess algebra that has the monster group as its automorphism group. This monster vertex algebra was also used to prove the monstrous moonshine conjectures.

外部ﾘﾝｸ:en.wikipedia.org
省8

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34(1): 07/22(火)00:12 ID:4jFdIsuX(1/8) AAS
>>30-33
君、博識だねえ
じゃあ
>なぜZFで和集合の公理が必要か、なぜ積集合の公理が不要か分かる？
にも答えられるよね　答えてみて

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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

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