Jacob Tsimerman, a mathematics professor at the University of Toronto, has been awarded the 2026 Fields Medal, which is considered the most prestigious honor in the field of mathematics.
He is the first mathematician affiliated with a Canadian institution to receive this accolade and only the second Canadian to do so. Manjul Bhargava, who is Canadian but works at Princeton University, was the first to receive the medal in 2014.
Tsimerman officially accepted his award during the International Mathematical Congress held in Philadelphia on Thursday.
“Receiving this award is a significant honor, not just for myself but also for my collaborators, who I am thrilled to see recognized,” he stated.
In a video presented at the ceremony, Tsimerman highlighted the crucial role that collaboration plays in mathematics, showcasing the work for which he is being honored in the video.
He received the award for his work “in recasting o-minimality as a fundamental approach in arithmetic and complex algebraic geometry,” according to the organizers, as well as for his contributions “in proving several key conjectures, including Griffiths’ conjecture regarding the algebraicity of images from the period maps, and the Andre-Oort conjecture concerning Siegel modular varieties.”
Adam Stinchcombe, an associate professor of mathematics at the University of Toronto and a colleague of Tsimerman, noted that Tsimerman devised new techniques to reach these proofs, which “can also be applied in various other mathematical fields.”
Every four years, a committee from the International Mathematical Union awards the medal and a cash prize to four mathematicians under the age of 40. This year’s other recipients include Yu Deng from the University of Chicago, John Pardon from Stony Brook University, and Hong Wang from New York University.
The awards are named after John Charles Fields, a Canadian mathematician, and are financed through a trust he set up at the University of Toronto.