Turkish Journal of Mathematics
207-220
Normalizer, Congruence subgroup, Hecke group
On the Normalizer of the Congruence Subgroup H05(I) of the Hecke Group H5
Turkish Journal of Mathematics
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