作者单位:
*Department of Mathematics, Ramsaday College, Amta-711401, West Bengal, India
[1]
§Department of Mathematics, Indian Institute Engineering Science and Technology, Shibpur, Howrah-711103, India
[2]
†Department of Mathematics, Hooghly Womens’ College, Pipulpati, Hooghly-712103, West Bengal, India
[3]
‡Department of Mathematics, B. P. Poddar Institute of Management and Technology, Kolkata, Kolkata-700052, West Bengal, India
[4]
发布时间
2019-05-08