Cyclic by prime fixed point free action
Author:
Alexandre Turull
Journal:
Proc. Amer. Math. Soc. 125 (1997), 34653470
MSC (1991):
Primary 20D45
MathSciNet review:
1443859
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Abstract: Let the finite group be acting on a (solvable) group and suppose that no nontrivial element of is fixed under the action of all the elements of . Assume furthermore that . A long standing conjecture is that then the Fitting height of is bounded by the length of the longest chain of subgroups of . Even though this conjecture is known to hold for large classes of groups , it is still unknown for some relatively uncomplicated groups. In the present paper we prove the conjecture for all finite groups that have a normal cyclic subgroup of square free order and prime index. Since many of these groups have natural modules where they act faithfully and coprimely but without regular orbits, the result is new for many of the groups we consider.
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Additional Information
Alexandre Turull
Affiliation:
Department of Mathematics, University of Florida, Gainesville, Florida 32611
Email:
turull@math.ufl.edu
DOI:
http://dx.doi.org/10.1090/S0002993997042639
PII:
S 00029939(97)042639
Keywords:
Solvable groups,
fixed point free action,
finite groups,
representations
Received by editor(s):
June 11, 1996
Additional Notes:
Partially supported by a grant from the NSF
Communicated by:
Ronald M. Solomon
Article copyright:
© Copyright 1997 American Mathematical Society
