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Commutators and Itô's theorem on character degrees - MaRDI portal

Commutators and Itô's theorem on character degrees (Q1924978)

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scientific article; zbMATH DE number 938603
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Commutators and Itô's theorem on character degrees
scientific article; zbMATH DE number 938603

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    Commutators and Itô's theorem on character degrees (English)
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    10 November 1996
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    The aim of this paper is to provide, what is called, easy accessible proofs of Theorems of \textit{N. Itô} [Nagoya Math. J. 3, 5-6 (1951; Zbl 0043.26002)], of \textit{C. W. Curtis} and \textit{T. V. Fossum} [Math. Z. 107, 402-406 (1968; Zbl 0185.06801)]\ and of \textit{G. Keller} [ibid. 107, 221-224 (1968; Zbl 0186.32801)]. Methods used here are: orthogonality relations, the center of \(\mathbb{C}[{\mathcal G}]\), some linear algebra, reciprocity law of Frobenius, Hecke-algebra-structure-constants; almost no algebraic number theory is used.
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    commutators
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    character degrees
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    group algebras
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    orthogonality relations
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    reciprocity laws
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    Hecke algebras
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