1. Guangxi Colleges and Universities Key Laboratory of Complex System Optimization and Big Data Processing, Yulin Normal University, Yulin, Guangxi, P.R. China
2. Faculty of Mathematics and Computer Science, Jagiellonian University in Krakow, Krakow, Poland
3. Department of Mathematics, Pedagogical University of Krakow, Krakow, Poland
4. Departement of Mathematics, FPT University, Hanoi, Vietnam