1. Department of Mathematics, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
2. Department of Mathematics, College of Sciences, King Khalid University, Abha 61413, Saudi Arabia
3. Department of Mathematics, Capital University of Science and Technology, Islamabad 64000, Pakistan
4. Department of Mathematics and Statistics, College of Science, Taif University, PO Box 11099, Taif 21944, Saudi Arabia
5. Department of Computer Science, GLA University, Mathura, Uttar Pradesh, India
6. Department of Mathematics, Jagannath University, Dhaka 1100, Bangladesh