Affiliation: | 1. School of Science, Ningbo University of Technology, 315211 Ningbo, China;2. School of Applied Mathematics, Xiamen University of Technology, 361024 Xiamen, China;1. Department of Mathematics, University of Peshawar, Pakistan;2. Department of Basic Sciences, University of Engineering and Technology Peshawar, Pakistan;3. Section of Mathematics, International Telematic University Uninettuno, Corso Vittorio Emanuele II, 39, Roma 00186, Italy;4. Department of Mathematics, University of Malakand, Pakistan;5. Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5 Street, Poznan 60-965, Poland |