Ashan Vitharana, University of Louisville, Louisville, KY, United States, Jian Du, Univ of Louisville, Louisville, KY, United States, Xuwen Zhu, University of Louisville, Department of Mathematics, Louisville, United States, Jens Oberheide, Clemson University, Clemson, SC, United States and William E Ward, University of New Brunswick, Fredericton, NB, Canada