Affiliation: | Research Center for Astronomy, Academy of Athens, Soranou Efesiou 4, GR-11527 Athens, Greece;Department of Mathematics, Division of Applied Analysis and Center for Research and Applications of Nonlinear Systems (CRANS), University of Patras, GR-26500 Patras, Greece;Department of Mathematics, University of Patras Artificial Intelligence Research Center (UPAIRC), University of Patras, GR-26110 Patras, Greece |