1. Department of Mathematics, Alagappa University, Karaikudi, India
2. Department of Convergence Science, Kongju National University, Gongju, South Korea
3. Ramanujan Centre for Higher Mathematics, Alagappa University, Karaikudi, India
4. Ramanujan Institute for Advanced Study in Mathematics, University of Madras, Chennai, India
5. Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science & Technology, Dalseong-gun, Daegu, South Korea