[1] JECRC Univ, Dept Math, Jaipur 303905, Rajasthan, India
[2] Jagan Nath Univ, Dept Math, Jaipur 303901, Rajasthan, India
[3] Natl Inst Technol, Dept Math, Jamshedpur 831014, Jharkhand, India
[4] Yagyavalkya Inst Technol, Dept Phys, Jaipur 302022, Rajasthan, India
[5] IEC Coll Engn & Technol, Dept Math, Greater Noida 201306, Uttar Pradesh, India