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RESEARCH PRODUCT

A note on endomorphisms of hypercentral groups

Giovanni CutoloChiara Nicotera

subject

Discrete mathematicsSubnormal subgroupAutomorphisms and endomorphisms of groupsPure mathematicsAlgebra and Number TheoryEndomorphismIf and only ifGroup (mathematics)Nilpotent and hypercentral groupsMathematics

description

Abstract Let H be a subnormal subgroup of a hypercentral group G. We prove that endomorphisms of G are uniquely determined by their restrictions to H if and only if Hom(G/HG,G)=0, and draw some consequences from this fact.

https://doi.org/10.1016/s0021-8693(02)00118-7