Sasmal, Sourav Kumar
Ghosh, Indrajit
Huppert, Amit
Chattopadhyay, Joydev
Funding for this research was provided by:
National Board of Higher Mathematics Government of India
University Grant Commission Government of India
Article History
Received: 12 December 2017
Accepted: 7 September 2018
First Online: 18 September 2018