1. Department of Mathematics, School of Physical Sciences, Central University of Karnataka, Kalaburagi 585367, India
2. Departamento de Física, FACI, Universidad de Tarapacá, Casilla 7D, Arica 1000000, Chile
3. Centre for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Hosur Road, Bengaluru 560029, India
4. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica 1000000, Chile