1. Data Recovery Key Laboratory of Sichuan Province, College of Mathematics and Information Science, Neijiang Normal University, Neijiang 641100, People’s Republic of China
2. School of Mathematics and Information Science, Guangxi University, Nanning 530004, People’s Republic of China
3. Department of Mathematics, Cankaya University, 06530 Balgat, Ankara, Turkey
4. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, Jiangsu, People’s Republic of China
5. Institute of Space Sciences, P.O. Box, MG23, R 76900, Magurele Bucharest, Romania