Prof. Thomas Bartsch
Department of Mathematics, University of Giessen, Arndtstr. 2, 35392 Giessen, Germany
Email: thomas.bartsch@math.uni-giessen.de

Prof. Elaine Crooks
Department of Mathematics, Swansea University, Bay Campus, Swansea SA1 8EN, United Kingdom
Email: e.c.m.crooks@swansea.ac.uk

Prof. Yihong Du
School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
Email: ydu@une.edu.au