1. Emilio Porcu is Professor, Department of Mathematics, Khalifa University, Abu Dhabi, The United Arab Emirates and Research Fellow, ADIA Lab, Abu Dhabi, The United Arab Emirates
2. Moreno Bevilacqua is Professor, Department of Statistics, Universidad Adolfo Ibanez, Santiago, Chile
3. Robert Schaback is Professor, Department of Mathematics, University of Göttingen, Göttingen, Germany
4. Chris J. Oates is Professor, School of Mathematics, Statistics & Physics, Newcastle University, Newcastle, UK