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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 -local Warfield abelian group is the direct sum of a Warfield group and an -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.
References:
- 1.
- S. Files, On transitive mixed abelian groups, pp. 243-251 in Abelian Groups and Modules: Proceedings of the 1995 Colorado Springs Conference, Marcel Dekker, New York, 1996.
- 2.
- L. Fuchs, Infinite Abelian Groups, Vol. II, Academic Press, New York, 1973. MR 50:2362
- 3.
- L. Fuchs, Abelian p-Groups and Mixed Groups, University of Montreal Press, 1980. MR 82f:20081
- 4.
- P. Hill, C. Megibben, Axiom 3 modules, Trans. Amer. Math. Soc. 295 (1986), 715-734. MR 87j:20090
- 5.
- R. Hunter, F. Richman, E. Walker, Warfield modules, Springer LNM 616 (1977), 87-123. MR 58:22041
- 6.
- R. Hunter, F. Richman, E. Walker, Existence theorems for Warfield groups, Trans. Amer. Math. Soc. 235 (1978), 345-362. MR 57:12723
- 7.
- I. Kaplansky, Infinite Abelian Groups, Univ. of Michigan Press, Ann Arbor, 1969. MR 38:2208
- 8.
- M. Lane, Isotype subgroups of p-local balanced projective groups, Trans. Amer. Math. Soc. 301 (1987), 313-325. MR 88d:20084
- 9.
- M. Lane, Fully invariant submodules of p-local balanced projective groups, Rocky Mt. J. Math. 18 (1988), 833-841. MR 90d:20099
- 10.
- R. Stanton, Relative S-invariants, Proc. Amer. Math. Soc. 65 (1977), 221-224. MR 56:5521
- 11.
- R. B. Warfield, Classification theorems for p-groups and modules over a discrete valuation ring, Bull. Amer. Math. Soc. 78 (1972), 89-92. MR 45:378
- 12.
- R. B. Warfield, Classification theory of abelian groups I: Balanced projectives, Trans. Amer. Math. Soc. 222 (1976), 33-63. MR 54:10444
- 13.
- R. B. Warfield, The structure of mixed abelian groups, Springer LNM 616 (1976), 1-38. MR 58:22342
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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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