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A note on element orders and character codegrees. (English) Zbl 1232.20014

The main result of this paper is: Theorem. Let \(G\) be a finite and let \(g\) be an element of \(G\). Then there exists an irreducible character \(\chi\) of \(G\) with \(\ker(\chi)\cap\langle g\rangle=\{1\}\) and where \(p\) divides \(|G:\ker(\chi)|/\chi(1)\) for any \(p\) of the order of \(g\).

MSC:

20C15 Ordinary representations and characters
20D10 Finite solvable groups, theory of formations, Schunck classes, Fitting classes, \(\pi\)-length, ranks
20D60 Arithmetic and combinatorial problems involving abstract finite groups
20C20 Modular representations and characters
Full Text: DOI

References:

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