Affiliation: | 1.School of Electrical Engineering, Chungbuk National University, Cheongju, 28644, Republic of Korea ;2.Center for Global Converging Humanities, Kyung Hee University, Yongin, 17104, Republic of Korea ;3.Department of Applied Mathematics, Bharathiar University, Coimbatore, 641046, India ;4.Department of Mathematics, Sungkyunkwan University, Suwon, 440746, Republic of Korea ; |