| Affiliation: | 1. Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu 4156, Korea;2. Research and Training Team for Future Creative Astrophysicists and Cosmologists (BK21 Plus Program), Daegu 4156, Korea;1. Department of Mathematics, Graphic Era Hill University, Dehradun, Uttarakhand, India 248002;2. Department of Mathematics, Graphic Era (deemed to be) University, Dehradun, Uttarakhand, India 248002;3. Indraprastha Institute of Management and Technology, Saharanpur, Uttar Pradesh, India 247551;4. Former Professor of Mathematics, Indian Institute of Technology, Roorkee, Uttarakhand, India 247671;5. Emeritus Professor of Mathematics, Ambala College of Engineering and Applied Research, Devasthali, Ambala Cantt, Haryana, India 133101 |
