Turkish Journal of Mathematics
207-220
Normalizer, Congruence subgroup, Hecke group
On the Power Subgroups of the Extended Modular Group G
Turkish Journal of Mathematics
Recep ŞAHİN, Sebahattin İKİKARDEŞ, Özden KORUOĞLU
A note on the solvability of a finite group in which every non-nilpotent maximal subgroup is normal
International Electronic Journal of Algebra
Wenjing LIU, Jiangtao SHI, Yunfeng TIAN
Finite groups with some weakly s-supplementally embedded subgroups
Turkish Journal of Mathematics
On NR*-subgroups of finite groups
Turkish Journal of Mathematics
On the Extended Hecke Groups \overline{H}(l q)
Turkish Journal of Mathematics
Nihal Yilmaz ÖZGÜR, Recep ŞAHİN
On CISE-normal subgroups of finite groups
Turkish Journal of Mathematics
On Fs-supplemented primary subgroups of finite groups
Turkish Journal of Mathematics
A note on infinite groups whose subgroups are close to be normal-by-finite