1. Department of Mathematics, School of Engineering, Presidency University, Bengaluru, Karnataka, India
2. Department of Mathematics, Sahyadri Science College, Shivamogga, Karnataka, India
3. Department of Studies and Research in Mathematics, Kuvempu University, Shankaraghatta, Shivamogga, Karnataka, India
4. Department of Mathematics, JNN College of Engineering, Shivamogga, Karnataka, India