Alejandro Vidal-López Editor

James C. Robinson is Professor of Mathematics in the Mathematics Institute at the University of Warwick. José L. Rodrigo is Associate Professor in the Mathematics Institute at the University of Warwick. Witold Sadowski is Assistant Professor in the Institute of Applied Mathematics at the University of Warsaw. Alejandro Vidal-López is a Lecturer in the Department of Mathematical Sciences at Xi'an Jiaotong-Liverpool University, China.