Ahmad Moradi Research Interests: Academic Ranks: Assistant Professor Address: Faculty: Faculty of Mathematical Sciences Email: a.moradi@umz.ac.ir Department: Reza Nadimi Research Interests: Academic Ranks: Assistant Professor Address: Faculty: Faculty of Mathematical Sciences Email: nadimi@umz.ac.ir Department: Ali Valinejad Research Interests: Academic Ranks: Assistant Professor Address: Faculty: Faculty of Mathematical Sciences Email: valinejad@umz.ac.ir Department: Rohollah Yousefpour Research Interests: Academic Ranks: Associate Professor Address: Faculty: Faculty of Mathematical Sciences Email: yousefpour@umz.ac.ir Department: