1. Department of Mathematics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, Tamil Nadu, India
2. 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
3. Department of Natural Sciences and Humanities, University of Engineering and Technology (Narowal Campus), Lahore 54000, Pakistan
4. Abdus Salam School of Mathematical Sciences, GC University, Lahore, Pakistan
5. Higher Education Department, Govt. Graduate College for Boys Gulberg Lahore, Punjab, Pakistan
6. Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea