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A NOTE ON AUTOMORPHISMS OF FINITE p-GROUPS

Published online by Cambridge University Press:  30 March 2012

S. MOHSEN GHORAISHI*
Affiliation:
Department of Mathematics, University of Isfahan, Isfahan 81746-73441, Iran (email: [email protected])
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Abstract

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Let p be an odd prime and let G be a finite p-group such that xZ(G)⊆xG, for all xGZ(G), where xG denotes the conjugacy class of x in G. Then G has a noninner automorphism of order p leaving the Frattini subgroup Φ(G) elementwise fixed.

MSC classification

Type
Research Article
Copyright
Copyright © Australian Mathematical Publishing Association Inc. 2012

References

[1]Abdollahi, A., ‘Finite p-groups of class 2 have noninner automorphisms of order p’, J. Algebra 312 (2007), 876879.CrossRefGoogle Scholar
[2]Abdollahi, A., ‘Powerful p-groups have noninner automorphisms of order p and some cohomology’, J. Algebra 323 (2010), 779789.CrossRefGoogle Scholar
[3]Deaconescu, M. and Silberberg, G., ‘Noninner automorphisms of order p of finite p-groups’, J. Algebra 250 (2002), 283287.CrossRefGoogle Scholar
[4]Gaschütz, W., ‘Nichtabelsche p-Gruppen besitzen äussere p-Automorphismen’, J. Algebra 4 (1966), 12.CrossRefGoogle Scholar
[5]Gorenstein, D., Finite Groups (Harper & Row, New York, 1968).Google Scholar
[6]Liebeck, H., ‘Outer automorphisms in nilpotent p-groups of class 2’, J. Lond. Math. Soc. (2) 40 (1965), 268275.CrossRefGoogle Scholar
[7]Macdonald, I. D., ‘Some p-groups of Frobenius and extra-special type’, Israel J. Math. 40 (1981), 350364.CrossRefGoogle Scholar
[8]Mazurov, V. D. and Khukhro (ed.), E. I., ‘Unsolved problems in group theory’, in: The Kourovka Notebook, No. 16 (Russian Academy of Sciences, Siberian Division, Institue of Mathematics, Novosibirisk, 2006).Google Scholar
[9]Schmid, P., ‘A cohomological property of regular p-groups’, Math. Z. 175 (1980), 13.CrossRefGoogle Scholar
[10]Yadav, M. K., ‘On automorphisms of finite p-groups’, J. Group Theory 10 (2007), 859866.CrossRefGoogle Scholar