The Department of Mathematics is pleased to announce that Adrian Nachman and Jacob Tsimerman have been named to the 2025 class of Fellows of the Royal Society of Canada (RSC). This prestigious recognition is reserved for Canadians who have made remarkable contributions to the arts, the humanities, the sciences, and Canadian public life.
Adrian Nachman is internationally celebrated for his breakthroughs on fundamental inverse problems arising in medical imaging and in physics. The original methods he introduced have shaped the development of the field. His scholarly work includes techniques from nonlinear harmonic analysis, partial differential equations, geometric measure theory, Riemannian geometry and optimal transport, as well as collaborations with bioengineers on the application of his novel ideas to future generations medical diagnostics technologies.
Jacob Tsimerman works in the field of arithmetic and complex geometry. He graduated from Princeton in 2011 under Peter Sarnak, and is currently the Ted Mossman chair at the University of Toronto. His major works include the resolution of the AndreOort and Griffiths conjectures. Tsimerman has been awarded the 2023 Ostrowski Prize, the 2022 New Horizons in Mathematics Prize, and the 2015 Sastra Ramanujan Prize.
The 2025 Fellows will be officially inducted on Friday, November 14, 2025, at the RSC’s Celebration of Excellence and Engagement in Montréal, Québec.
View the complete list of newly elected Fellows.