1. Centre for Advanced Studies in Pure and Applied Mathematics (CASPAM), Bahauddin Zakariya University , Multan 60800 , Pakistan
2. Department of Mathematics, COMSATS University Islamabad Vehari Campus , 63100, Islamabad , Pakistan
3. Department of Mathematics, Capital University of Science & Technology , Islamabad , Pakistan
4. Center of Research, Faculty of Engineering, Future University in Egypt , New Cairo 11835 , Egypt