Leonid A. Kurdachenko, Igor Ya. Subbotin
On some soluble groups in which $U$-subgroups form a lattice

Comment.Math.Univ.Carolin. 48,4 (2007) 585-593.

Abstract:The article is dedicated to groups in which the set of abnormal and normal subgroups ($U$-subgroups) forms a lattice. A complete description of these groups under the additional restriction that every counternormal subgroup is abnormal is obtained.

Keywords: abnormal subgroups, $U$-subgroups, counternormal subgroups
AMS Subject Classification: 20F16, 20E15