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The π-character theory of solvable groups

Published online by Cambridge University Press:  09 April 2009

I. M. Isaacs
Affiliation:
Mathematics Department, University of Wisconsin, Madison WI 53706, USA, e-mail: [email protected]
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Abstract

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There is a deeper structure to the ordinary character theory of finite solvable groups than might at first be apparent. Mauch of this structure, which has no analog for general finite gruops, becomes visible onyl when the character of solvable groups are viewes from the persepective of a particular set π of prime numbers. This purely expository paper discusses the foundations of this πtheory and a few of its applications. Included are the definitions and essential properties of Gajendragadkar's π-special characters and their connections with the irreducible πpartial characters and their associated Fong characters. Included among the consequences of the theory discussed here are applications to questions about the field generated by the values of a character, about extensions of characters of subgroups and about M-groups.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1994

References

[1]Amit, G. and Chillag, D., ‘On a question of Feit concerning character values of finite solvable groups’, Pacific J. Math. 122 (1986), 257261.CrossRefGoogle Scholar
[2]Ferguson, P. and Turull, A., ‘On a question of Feit’, Proc. Amer. Math. Soc. 97 (1986), 2122.CrossRefGoogle Scholar
[3]Fong, P., ‘Solvable groups and modular representation theory’, Trans. Amer. Math. Soc. 103 (1962), 484494.CrossRefGoogle Scholar
[4]Gajendragadkar, D., ‘A characteristics class of characters of finite π-separable groups’, J. Algebra 59 (1979), 237259.CrossRefGoogle Scholar
[5]Isaacs, I. M., Character theory of finite groups (Academic Press, New York, 1976).Google Scholar
[6]Isaacs, I. M., ‘Lifting Brauer characters of p-solvable groups II’, J. Algebra 51 (1978), 476490.CrossRefGoogle Scholar
[7]Isaacs, I. M., ‘Primitive characters, normal subgroups and M-groups’, Math. Z. 177 (1981), 267284.CrossRefGoogle Scholar
[8]Isaacs, I. M., ‘Characters of π-separable groups’, J. Algebra 86 (1984), 98128.CrossRefGoogle Scholar
[9]Isaacs, I. M., ‘Fong characters in π-separable groups’, J. Algebra 99 (1986), 89107.CrossRefGoogle Scholar
[10]Isaacs, I. M., ‘Partial characters of π-separable groups’, Prog. Math. 95 (1991), 273287.Google Scholar
[11]Robinson, G. and Staszewski, R., ‘On the representation theory of π-separable groups’, J. Algebra 119 (1988), 226232.CrossRefGoogle Scholar
[12]Wolf, T. R., ‘Variations on McKay' character degree conjecture’, J. Algebra 135 (1990), 123138.CrossRefGoogle Scholar