Related fixed points for set valued mappings on two metric spaces. Fisher, Brian; Türkoḡlu, Duran — 2000 International Journal of Mathematics and Mathematical Sciences
Best approximations theorem for a couple in cone Banach space. Karapınar, Erdal; Türkoğlu, Duran — 2010 Fixed Point Theory and Applications [electronic only]
Some fixed-point theorems for multivalued monotone mappings in ordered uniform space. Turkoglu, Duran; Binbasioglu, Demet — 2011 Fixed Point Theory and Applications [electronic only]
Related fixed points for set-valued mappings on two uniform spaces. Türkoğlu, Duran; Fisher, Brian — 2004 International Journal of Mathematics and Mathematical Sciences
A generalization of a fixed point theorem of Ćirić. Türkoğlu, Duran; Fisher, Brian — 1999 Novi Sad Journal of Mathematics
Common fixed point theorems for four mappings with some weak conditions of commutativity. Turkoglu, Duran; Altun, Ishak; Fisher, Brian — 2006 Novi Sad Journal of Mathematics
Fixed points of weakly compatible maps satisfying a general contractive condition of integral type. Altun, Ishak; Türkoğlu, Duran; Rhoades, Billy E. — 2007 Fixed Point Theory and Applications [electronic only]
Some fixed points theorems for multi-valued weakly uniform increasing operators Ishak Altun; Duran Turkoglu — 2008 Rendiconti del Seminario Matematico della Università di Padova