Institution: | (1) Department of Mathematics, Dr. Sivanthi Aditanar College of Engineering, Tiruchendur, 628 215, Tamil Nadu, India;(2) Department of Mathematics, Aditanar College of Arts and Science, Tiruchendur, 628 216, Tamil Nadu, India;(3) Present address: Department of Computer Applications, D. J. Academy, Coimbatore, 641 032, Tamil Nadu, India |