Kurdachenko, L.A., Levishchenko, S.S. and Semko, N.N. (1983) Groups with Almost Normal Infinite Subgroups. Soviet Mathematics (Izvestiya VUZ. Matematika), 27, 73-81.
has been cited by the following article:
TITLE: Structure of Groups with Generalized Normal Subgroups
AUTHORS: Mohammad Arshaduzzaman
KEYWORDS: Normality, Nearly Normality, Normalizer Subgroup
JOURNAL NAME: Advances in Pure Mathematics, Vol.4 No.6, June 13, 2014
ABSTRACT: The present paper deals with a subgroup X of a group G is almost normal if the index |G: NG(X)| is finite, while X is nearly normal if it has finite index in the normal closure XG. This paper investigates the structure of groups in which every (infinite) subgroup is either almost normal or nearly normal.