1. School of Technology, The Apollo University, Chittoor 517127, Andhra Pradesh, India
2. Department of Mathematics, Koneru Lakshmaiah Education Foundation, Bowrampet, Hyderabad 500043, Telangana, India
3. Department of Software Engineering, Jeonbuk National University, Jeonju-si 54896, Republic of Korea
4. Department of Mathematical Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea