1. 1. Prof. Binayak S. Choudhury Department of Mathematics, Bengal Engineering and Science University, West Bengal, India binayak12@yahoo.co.in
2. 2. Prof H. K. Pathak School of Studies in Mathematics, Pt. Ravi Shankar Shukla University, Chattisgarh, India hkpathak05@gmail.com
3. 3. Prof. Yeol Je Cho Department of Mathematics Education and the RINS, Gyeonsang National University, South Korea yjcho@gnu.ac.kr