On second minimal subgroups of Sylow subgroups of finite groups

A subgroup H of a finite group G is a partial CAP-subgroup of G if there is a chief series of G such that H either covers or avoids its chief factors. Partial cover and avoidance property has turned out to be very useful to clear up the group structure. In this paper, finite groups in which the second minimal subgroups of their Sylow p-subgroups, p a fixed prime, are partial CAP-subgroups are completely classified.

This paper has been published in Journal of Algebra, 342(2):134-146 (2011). Copyright 2011 by Elsevier. http://dx.doi.org/10.1016/j.jalgebra.2011.06.016