| Affiliation: | 1. Technical University of Munich, Institute for Communications Engineering, 80333 Munich, Germany;2. Skolkovo Institute of Science and Technology, Center for Computational and Data-Intensive Science and Engineering, 121205 Moscow, Russia;1. Departamento de Matemáticas, Universidad de León, Spain;2. Departamento de Matemáticas, Universidad de Salamanca, Spain;1. Department of Information Engineering and Mathematics, University of Siena, Via Roma 56, I-53100, Siena, Italy;2. D.I.C.A.T.A.M. (Section of Mathematics), University of Brescia, Via Branze 53, I-25123, Brescia, Italy;3. Faculty of Mathematics and Computer Science, University of Warmia and Mazury, Słoneczna 54, Olsztyn, Poland;1. Department of Mathematics, Ewha Womans University, 52, Ewhayeodae-Gil, Seodaemun-Gu, Seoul, 03760, Republic of Korea;2. Department of Mathematical Sciences, Ulsan National Institute of Science and Technology, 50, UNIST-gil, Ulsan, 44919, Republic of Korea |
