Troy Day is Professor and Head of the Department of Mathematics and Statistics, and Professor of Biology at Queen’s University. He was a Canada Research Chair in Mathematical Biology from 2002-2012. He is an applied mathematician whose work focusses on developing theory and analyzing mathematical models for processes in evolutionary biology. He has particular interest in mathematical epidemiology and the evolutionary biology of infectious diseases. His work involves a combination of stochastic processes, dynamical systems, optimization and control, and game theory. He was a member of the Modeling Consensus Table arm of the Ontario COVID-19 Science Advisory Table during the COVID-19 pandemic. Day is the author of numerous peer-reviewed articles, two textbooks in mathematics, one textbook on mathematical modeling in biology, and a monograph on the role of nongenetic inheritance in evolutionary biology.
Day has received several awards for his work including a Canada Research Chair, an E.W.R Steacie Fellowship, a Canada Council Killam Research Fellowship, the E.W.R. Steacie Prize, and The Canadian Applied and Industrial Mathematics Society Research Prize. He is an Elected Fellow of the American Association for the Advancement of Science, and has been a Fellow of the Swedish Collegium for Advanced Study, and a Poste Rouge Fellow of the Centre National de la Recherche Scientifique in France. He has held editorships and associate editorships at many top journals including the Journal of Mathematical Biology, Mathematical Biosciences and Engineering, the Journal of Nonlinear Modeling and Analysis, Entropy, the Proceedings of the Royal Society of London, the American Naturalist, Evolution, the Journal of Evolutionary Biology, and Evolutionary Ecology Research. He was elected to the Royal Society of Canada in 2016.