1. Department of Mathematics, Government College Raigaon, Satna 485441, Madhya Pradesh, India
2. Department of Engineering Mathematics, Koneru Lakshmaiah Education Foundation, Vaddeswaram 522302, Andhra Pradesh, India
3. Department of Economics, University of Molise, Via De Sanctis, 86100 Campobasso, Italy
4. Department of Statistics & Operations Research, College of Sciences, King Saud University, Riyadh 11495, Saudi Arabia