Abstract
LetG be a finite primitive linear group over a fieldK, whereK is a finite field or a number field. We bound the composition length ofG in terms of the dimension of the underlying vector space and of the degree ofK over its prime subfield. As a byproduct, we prove a result of number theory which bounds the number of prime factors (counting multiplicities) ofq n−1, whereq, n>1 are integers, improving a result of Turull and Zame [6].
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References
T. Apostol, Introduction to Analytic Number Theory. Berlin-Heidelberg-New York 1976.
M. Aschbacher, Finite Group Theory. Cambridge 1986.
B. Huppert, Endliche Gruppen I. Berlin-New York 1967.
A. Lucchini, F. Menegazzo andM. Morigi, On the number of generators and composition length of finite linear groups. J. Algebra243, 427–447 (2002).
J. J. Sylvester, On the divisors of the sum of a geometrical series whose first term is unity and common ratio any positive or negative integer. Nature37, 417–418 (1888) and Collected Papers, vol. IV, 625–629, Cambridge 1912.
A. Turull andA. Zame, Number of prime divisors and subgroup chains. Arch. Math.55, 333–341 (1990).
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Languasco, A., Menegazzo, F. & Morigi, M. On the composition length of finite primitive linear groups. Arch. Math 79, 408–417 (2002). https://doi.org/10.1007/BF02638376
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DOI: https://doi.org/10.1007/BF02638376