1. Department of Mathematics, St. Xavier’s College (Autonomous), Palayamkottai 627002, Tamil Nadu, India
2. Reg. No.: 20211282091003, 20211282092005, PG and Research Department of Mathematics, St. Xavier’s College (Autonomous), Palayamkottai 627002, Tamil Nadu, India
3. Manonmaniam Sundaranar University, Abisekapatti 627012, Tamil Nadu, India