| Institution: | 1. Institute of Mathematics, State Academy of Sciences, Pyongyang, Democratic People''s Republic of Korea;2. PGItech Corp., Pyongyang, Democratic People''s Republic of Korea;3. Department of Mathematics, University of Paris VIII, F-93526 Saint-Denis, France;4. University Sorbonne Paris Cité, LAGA, UMR 7539, CNRS, 93430 Villetaneuse, France;5. Telecom Paris, Polytechnic Institute of Paris, 91120 Palaiseau, France;1. Department of Mathematics and Institute of Pure and Applied Mathematics, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, South Korea;2. Dept. of Mathematical Sciences, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea;1. Dipartimento di Matematica e Informatica, Università degli studi di Perugia, Perugia, Italy;2. Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università degli Studi di Modena e Reggio Emilia, Modena, Italy;1. Département de mathématiques et de statistique, Université de Montréal, CP 6128, succ. Centre-ville, Montreal, H3C 3J7, QC, Canada;2. Centre de recherches mathématiques, Université de Montréal, CP 6128, succ. Centre-ville, Montreal, H3C 3J7, QC, Canada |
