Institution: | 1.Department of Mathematics, Ahi Evran University, Kirsehir, Turkey ;2.Department of Mathematics, Dumlupinar University, Kutahya, Turkey ;3.Institute of Mathematics and Mechanics, Baku, Azerbaijan ;4.S.M. Nikolskii Institute of Mathematics at RUDN University, Moscow, Russia, 117198 ;5.Department of Mathematics, Ibaraki University, Mito, Ibaraki, 310-8512, Japan ;6.Department of Mathematics and Information Sciences, Tokyo Metropolitan University, Minami-Ohsawa 1-1, Hachioji, Tokyo, 192-0397, Japan ; |