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

The fully invariant subgroups of local Warfield groups

Author(s): Steve T. Files
Journal: Proc. Amer. Math. Soc. 125 (1997), 3515-3518.
MSC (1991): Primary 20K27, 20K21; Secondary 20K30
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Abstract: We prove that every fully invariant subgroup of a $p$-local Warfield abelian group is the direct sum of a Warfield group and an $S$-group. This solves a problem posed some time ago by R. B. Warfield, and finalizes recent work of M. Lane concerning the fully invariant subgroups of balanced projective groups.


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Additional Information:

Steve T. Files
Affiliation: Department of Mathematics, Wesleyan University, Middletown, Connecticut 06459
Email: sfiles@wesleyan.edu

DOI: 10.1090/S0002-9939-97-03999-3
PII: S 0002-9939(97)03999-3
Received by editor(s): June 30, 1995
Received by editor(s) in revised form: July 18, 1996
Additional Notes: The author was supported by the Graduiertenkolleg of the University of Essen
Communicated by: Andreas R. Blass
Copyright of article: Copyright 1997, American Mathematical Society


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