1. Department of MathematicsVel Tech High Tech Dr Rangarajan Dr Sakunthala Engineering College Avadi India
2. Ramanujan Centre for Higher MathematicsAlagappa University Karaikudi India
3. Department of Mathematics and General SciencesPrince Sultan University Riyadh Saudi Arabia
4. School of MathematicsSoutheast University Nanjing China
5. Department of MathematicsMaejo University Chiangmai Thailand
6. School of Mathematics and StatisticsHunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering, Changsha University of Science and Technology Changsha China