Authors
Pradip Majhi
Department of Pure Mathematics, University of Calcutta, Kolkata, India
Debabrata Kar
Department of Pure Mathematics, University of Calcutta, Kolkata, India
© 2017 Pradip Majhi, Uday Chand De, Debabrata Kar, published by West University of Timisoara
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.