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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

$n$-inner automorphisms of finite groups

Author(s): Fernando Szechtman
Journal: Proc. Amer. Math. Soc. 131 (2003), 3657-3664.
MSC (2000): Primary 20D45, 20E36
Posted: February 28, 2003
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Abstract: We refer to an automorphism $g$ of a group $G$ as $n$-inner if given any subset $S$ of $G$ with cardinality less than $n$, there exists an inner automorphism of $G$ agreeing with $g$ on $S$. Hence $g$ is 2-inner if it sends every element of $G$ to a conjugate. New examples are given of outer $n$-inner automorphisms of finite groups for all natural numbers $n\geq 2$.


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Additional Information:

Fernando Szechtman
Affiliation: Department of Pure Mathematics, University of Waterloo, Ontario, Canada N2L 3G1
Email: fszechtm@herod.uwaterloo.ca

DOI: 10.1090/S0002-9939-03-06974-0
PII: S 0002-9939(03)06974-0
Received by editor(s): March 6, 2002
Received by editor(s) in revised form: July 10, 2002
Posted: February 28, 2003
Communicated by: Stephen D. Smith
Copyright of article: Copyright 2003, American Mathematical Society


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