A topological proof of the Shapiro-Shapiro conjecture



A new virtual lecture series from the Department of Combinatorics and Optimization and The Fields Institute, featuing one hour lectures on research in theory and applications of optimization with an emphasis on continuous optimization.
Congratulations to the researchers in the Department of Combinatorics and Optimization who have been awarded a 2020 Oustanding Performance Award announced by Vice-President, Academic and Provost James Rush.
Robert Cummings is the recipient of the 2021 Governor General’s Academic Silver Medal for the Faculty of Mathematics. Cummings, an Honours Computer Science and Combinatorics and Optimization student, will graduate this June with a BMath.


Olya Mandelshtam and Kanstantsin Pashkovich are the newest faculty members in the C&O department.
Professor Henry Wolkowicz is a co-organizer of an upcoming Workshop on Discrete Geometry, Semidefinite Programming and Applications (May 10-14) and a Mini-Symposium on Sensor Network Localization and Dynamical Distance Geometry (May 18-27).
In her paper, the 1989 Erdos-Hajnal conjecture is resolved for cycles of length 5.