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Induced character
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Induced character : ウィキペディア英語版
Induced character
In mathematics, an induced character is the character of the representation ''V'' of a finite group ''G'' induced from a representation ''W'' of a subgroup ''H'' ≤ ''G''. More generally, there is also a notion of induction \operatorname(f) of a class function ''f'' on ''H'' given by the formula
:\operatorname(f)(s) = \frac \sum_ f(t^ st).
If ''f'' is a character of the representation ''W'' of ''H'', then this formula for \operatorname(f) calculates the character of the induced representation ''V'' of ''G''.〔. Translated from the second French edition by Leonard L. Scott.〕
The basic result on induced characters is Brauer's theorem on induced characters. It states that every irreducible character on ''G'' is a linear combination with integer coefficients of characters induced from elementary subgroups.
== References ==


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「Induced character」の詳細全文を読む



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