1. Department of Mathematics, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur 603203, Kanchipuram, Chennai, Tamil Nadu, India
2. Department of Mathematics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, Tamil Nadu, India
3. Department of Mathematics, Çankaya University, Etimesgut 06790, Ankara, Turkey
4. Department of Medical Research, China Medical University, Taichung 40402, Taiwan