Some results on space-like line congruences and their space-like parameter ruled surfaces
Countable dense homogeneous bitopological spaces
Abdalla TALLAFHA, Ali FORA, Adnan AL BSOUL
Cycloidal Normal Subgroups of Hecke Groups of Finite Index
A Stone's representation theorem and some applications
Abdullah KOPUZLU, A. A. SALIMOV
Normal Subgroups and Elements of H'(lq)
Univalent Harmonic Mappings Onto Half Planes
Normal subgroups and elements of H' ($lambda$)
A Stone's Representation Theorem and Some Applications