| Affiliation: | 1. Institute of Mathematical Sciences, Ewha Womans University, Seoul, Republic of Korea;2. Department of Mathematics, Sungkyunkwan University, Suwon, Republic of Korea;3. Department of Mathematics, Ewha Womans University, Seoul, Republic of Korea;1. Department of Mathematics, Faculty of Mathematics and Physics, Charles University, Sokolovská 83, 186 75 Prague 8, Czech Republic;2. Institut de Mathématiques de Toulon, campus La Garde, 83041 Toulon, France;1. Department of Mathematics, University of Scranton, Scranton, PA 18510, USA;2. Department of Mathematics, University of Chester, Chester, UK;3. Department of Engineering Fundamentals, Sampoerna University, 12780, Jakarta, Indonesia |
