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DEGREES OF BRAUER CHARACTERS AND NORMAL SYLOW $p$-SUBGROUPS

Published online by Cambridge University Press:  08 January 2020

XIAOYOU CHEN
Affiliation:
College of Science, Henan University of Technology, Zhengzhou450001, China email [email protected]
MARK L. LEWIS*
Affiliation:
Department of Mathematical Sciences, Kent State University, Kent, OH 44242, USA email [email protected]

Abstract

Let $p$ be a prime, $G$ a solvable group and $P$ a Sylow $p$-subgroup of $G$. We prove that $P$ is normal in $G$ if and only if $\unicode[STIX]{x1D711}(1)_{p}^{2}$ divides $|G:\ker (\unicode[STIX]{x1D711})|_{p}$ for all monomial monolithic irreducible $p$-Brauer characters $\unicode[STIX]{x1D711}$ of $G$.

Type
Research Article
Copyright
© 2020 Australian Mathematical Publishing Association Inc.

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References

Chen, X., Cossey, J. P., Lewis, M. L. and Tong-Viet, H. P., ‘Blocks of small defect in alternating groups and squares of Brauer character degrees’, J. Group Theory 20 (2017), 11551173.CrossRefGoogle Scholar
Chen, X. and Lewis, M. L., ‘Squares of degrees of Brauer characters and monomial Brauer characters’, Bull. Aust. Math. Soc. 100 (2019), 5860.CrossRefGoogle Scholar
Chen, X. and Lewis, M. L., ‘Monolithic Brauer characters’, Bull. Aust. Math. Soc. 100 (2019), 434439.CrossRefGoogle Scholar
Gallagher, P. X., ‘Group characters and normal Hall subgroups’, Nagoya Math. J. 21 (1962), 223230.CrossRefGoogle Scholar
Isaacs, I. M., Character Theory of Finite Groups (Academic Press, New York, 1976).Google Scholar
Isaacs, I. M., ‘Large orbits in actions of nilpotent groups’, Proc. Amer. Math. Soc. 127 (1999), 4550.CrossRefGoogle Scholar
Navarro, G., Characters and Blocks of Finite Groups (Cambridge University Press, Cambridge, 1998).CrossRefGoogle Scholar
Tong-Viet, H. P., ‘Brauer characters and normal Sylow p-subgroups’, J. Algebra 503 (2018), 265276; ‘Corrigendum to “Brauer characters and normal Sylow $p$-subgroups”’, J. Algebra 505 (2018), 597–598.CrossRefGoogle Scholar