Affiliation: | 1. Department of PG and UG studies in Mathematics, Government College, Gulbarga‐585105, Karnataka, India;2. Department of Mathematics, Gulbarga University, Gulbarga‐585106, Karnataka, India;3. Department of Mathematics, R.L. Jalappa institute of Technology, Doddaballapur, Karnataka, India;4. Department of Mathematics, Jyothi Institute of Technology, Tataguni, Bangalore‐62, Karnataka, India |