1. Department of Mathematics Shanghai University Shanghai Shanghai 200444 People's Republic of China
2. National University of Computer and Emerging Sciences Islamabad, Chiniot‐Faisalabad Campus Pakistan
3. Physics Department Eastern Mediterranean University Famagusta, North Cyprus via Mersin 10 Turkey
4. National University of Computer and Emerging Sciences Lahore Campus Pakistan
5. School of Electrical Engineering and Computer Science National University of Sciences and Technology H‐12 Islamabad Pakistan