About the Authors

Md. Ekramul Islam

Department of Mathematics, Pabna University of Science and Technology, Pabna, Bangladesh

Kamruzzaman Khan

Department of Mathematics, Pabna University of Science and Technology, Pabna, Bangladesh

M. Ali Akbar

Department of Applied Mathematics, University of Rajshahi, Rajshahi, Bangladesh

Rafiqul Islam

Department of Mathematics, Pabna University of Science and Technology, Pabna, Bangladesh

Corresponding Author

Email: k.khanru@gmail.com