Editor-in-Chief:  M.Mehdi Ebrahimi (Faculty of Mathematical Sciences, Shahid Beheshti University, Evin, Tehran, Iran; m-ebrahimi@sbu.ac.ir)

Managing and Director in Charge:  Mojgan Mahmoudi (Faculty of Mathematical Sciences, Shahid Beheshti University, Evin, Tehran, Iran; m-mahmoudi@sbu.ac.ir )