Affiliation: | 1. Abant Izzet Baysal University, Faculty of Science and Arts, Department of Mathematics, 14280 Gölköy Bolu, Turkey;2. School of Applied Sciences, Netaji Subhas Institute of Technology, Sector 3 Dwarka, New Delhi-110075, India;3. Harran University, Science and Arts Faculty, Department of Mathematics, Osmanbey Campus, Sanl?urfa, Turkey |