| Institution: | 1. Departamento de Matemática e Estatı́stica, Universidade Federal da Paraı́ba-Campus II, Campina Grande (PB) 581009-970, Brazil;2. Departamento de Matemática, Universidade Federal de Viçosa, Viçosa (MG) 36571-000, Brazil;1. Department of Mathematics, College of Sciences, King Saud University, Box 2455, Riyadh 11451,Saudi Arabia;2. Institute of Mathematics “Simion Stoilow” of the Romanian Academy, P.O. Box 1-764, 014700 Bucharest, Romania;3. Department of Mathematics, University of Craiova, Street A.I. Cuza No. 13, 200585 Craiova, Romania;1. Dipartimento di Matematica, Universita'' di Roma “Sapienza”, P. le A. Moro 2, 00185 Roma, Italy;2. Institut de Mathématique, Université de Mons, 20, Place du Parc, B-7000 Mons, Belgium;1. School of Mathematical Sciences, Beijing Normal University, Beijing, 100875, PR China;2. Department of Mathematics, Zhejiang Normal University, Jinhua, 321004, PR China;1. Department of Mathematics, Xiangnan University, 889 Chen Zhou Da Dao, Chenzhou, Hunan 423000, China;2. Department of Mathematical Sciences, the University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX 75080, USA;3. Department of Mathematics, Ben-Gurion University of the Negev, Beer-Sheba 8410501, Israel;4. Department of Computer Science, National Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan |
