1. Department of Mathematics, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, India
2. Department of Mathematics, School of Liberal Arts and Sciences, Mohan Babu University (Erstwhile Sree Vidyanikethan Engineering College), Tirupati, India
3. Department of Quantitative Analysis, College of Business Administration, King Saud University, Riyadh, Saudi Arabia
4. Department of Statistics, College of Commerce, AL-Azhar University, Egypt
5. Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia