Affiliation: | 1. Department of mathematics, Al-Aqsa University, Gaza, Palestine 2. Department of Physics, Al-Azhar University, Gaza, Palestine 3. International Center for Theoretical Physics (ICTP), Trieste, Italy 4. Department of Physics, Mutah University, Karak, Jordan 5. Department of Mathematics and Computer Sciences, Faculty of Arts and Sciences, ?ankaya University, Ankara, Turkey 6. Institute of Space Sciences, P.O. Box MG-23, 76900, Magurele-Bucharest, Romania
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