| Affiliation: | 1. School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, PR China;2. Provincial Key Laboratory of Applied Mathematics, Putian University, Putian, Fujian 351100, PR China;3. Fujian Provincial Key Laboratory of Network Security and Cryptology, College of Mathematics and Informatics, Fujian Normal University, Fuzhou, Fujian, 350117, PR China;1. Departamento de Matemática, Faculdade de Ciências da Universidade de Lisboa, Bloco C6, Piso 2, Campo Grande, 1749-016 Lisboa, Portugal;2. Departamento de Matemática, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2825-114 Monte da Caparica, Portugal;1. CNRS, IMJ-PRG, Sorbonne Université, 4 Place Jussieu, F-75252 Paris Cedex 05, France;2. CNRS, IRMA, Université de Strasbourg, 7 rue René Descartes, F-67084 Strasbourg, France;3. Johann Radon Institute, RICAM, Austrian Academy of Sciences, Altenberger Straße 69, A-4040 Linz, Austria;1. Université des Sciences et Techniques de Masuku, Faculté des Sciences, Département de Mathématiques et Informatique, BP 943 Franceville, Gabon;2. Université Cheikh Anta Diop de Dakar, Ecole Doctotale de Mathématiques et Informatique, BP 5005 Dakar Fann, Senegal |
