1. Department of Mathematics, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
2. Department of Mathematics, Visvesvaraya National Institute of Technology, Nagpur 440010, India
3. Department of Physics, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, Terzioğlu Campus 17020, Turkey