Hongyu Liu is a Professor at the Department of Mathematics, City University of Hong Kong. Before taking up the current position, he worked as a Professor and the Associate Head at the Department of Mathematics, Hong Kong Baptist University (2014-2020). Prior to that, he held faculty positions at University of North Carolina, Charlotte, USA (2011-2014), University of Reading, UK (2010/11), and University of Washington, Seattle, USA (2007-2010). He obtained his PhD in Mathematics from The Chinese University of Hong Kong (2007). His research focuses on the analysis, computation and applications of inverse problems, wave imaging, partial differential equations, mathematical materials science, scattering theory and spectral theory.