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Some finite solvable groups with non-trivial lattice endomorphisms

By Stewart E. Stonehewer and G. Zacher


The main purpose of this paper is to exhibit a doubly-infinite family of examples which are extensions of a p-group by a p′-group, with the action satisfying some conditions of Zappa (1951), arising from his study of dual-standard (meet-distributive) subgroups. The examples show that Zappa's conditions do not bound the nilpotency class (or even the derived length) of the p-group. The key to this work is found in closely related conditions of Hartley (published here for the first time). The examples use some exceptional relationships between primes

Topics: QA
Publisher: Cambridge University Press
Year: 2003
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