Authors
Parbati Saha
Department of Mathematics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, INDIA
Pratap Mondal
Department of Mathematics, Bijoy Krishna Girls’ College, Howrah, West Bengal, INDIA
Binayak S. Chqudhury
Department of Mathematics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, INDIA