Finite groups in which distinct nonlinear irreducible characters have distinct codegrees

Guohua Qian and Yu Zeng

Mathematische Nachrichten, 2024, vol. 297, issue 2, 482-493

Abstract: For an irreducible complex character χ of a finite group G, its codegree is defined as |G:kerχ|/χ(1)$|G:\ker \chi |/\chi (1)$. The main focus of this paper is to provide a classification of finite groups where distinct nonlinear irreducible characters have distinct codegrees.

Date: 2024
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https://doi.org/10.1002/mana.202300123

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