University of Toronto mathematician Jacob Tsimerman wins Fields Medal
University of Toronto math professor Jacob Tsimerman has won the Fields Medal, the top global honour in mathematics.
Science·NewUniversity of Toronto mathematician Jacob Tsimerman wins Fields MedalUniversity of Toronto math professor Jacob Tsimerman has won the Fields Medal, the top global honour in mathematics.'Big honour,' says 1st winner of prestigious prize at a Canadian institutionEmily Chung · CBC News · Posted: Jul 23, 2026 2:14 PM EDT | Last Updated: 19 minutes agoPlayListen to this articleEstimated 2 minutesThe audio version of this article is generated by AI-based technology. Mispronunciations can occur.
We are working with our partners to continually review and improve the results.Jacob Tsimerman, a mathematics professor at the University of Toronto, accepts the prestigious Fields Medal in Philadelphia on Thursday. (Allie Ippolito/University of Toronto)Social SharingUniversity of Toronto math professor Jacob Tsimerman has won a 2026 Fields Medal, the top global honour in mathematics.
He's the first mathematician based at a Canadian institution to win the award and the second Canadian. Manjul Bhargava, who is Canadian but based at Princeton University, won the award in 2014.Tsimerman accepted the award at the International Mathematical Congress in Philadelphia on Thursday."
It's a big honour, obviously, getting this award for me and my collaborators, who I'm very happy are being recognized, as well," he said. Tsimerman stressed the importance of collaboration in mathematics in a video shown at the ceremony that also describes the work for which he's being recognized.WATCH | Tsimerman and his work:Tsimerman won for his contribution "in the recasting of o-minimality as a fundamental method of arithmetic and complex algebraic geometry," said organizers, and for his role "in the proof of many central conjectures, including Griffiths' conjecture on the algebraicity of images of the period maps, and the Andre-Oort conjecture for Siegel modular varieties."
Adam Stinchcombe, a colleague and an associate professor of mathematics at the University of Toronto, said in order to come up with those proofs, Tsimerman developed new techniques that "can be used in other areas of math."The medal and a cash prize are awarded to four mathematicians under 40 every four years by a committee of the International Mathematical Union. This year's other winners were Yu Deng of the University of Chicago, John Pardon of Stony Brook University and Hong Wang of New York University.
The awards are named after Canadian mathematician John Charles Fields and funded by a trust he established at the University of Toronto.ABOUT THE AUTHOREmily ChungScience, Climate, Environment ReporterEmily Chung covers science, the environment and climate for CBC News and is co-editor of CBC's What on Earth newsletter. She was part of teams that won a Silver 2024 Kavli Science Reporting Award and a 2019 Digital Publishing Award for best newsletter for What on Earth.
She has a PhD in chemistry from the University of British Columbia. You can email story ideas to emily.chung@cbc.
ca.Subscribe to the What on Earth newsletterWith a file from Sheehan DesjardinsCBC's Journalistic Standards and Practices·About CBC NewsCorrections and clarifications·Submit a news tip·Report errorRelated StoriesCanadian Ethan Katzberg wins men’s hammer throw event at Prefontaine ClassicNewly retired Brampton couple wins $70M Lotto Max jackpotEthan Katzberg rules hammer throw in Budapest with world-leading 83.64m season best, meet recordSummer McIntosh breaks women’s 200m butterfly world record at Canadian swim trialsMcIntosh breezes to women's 400m IM win, but misses own world record at Canadian trials Science·NewUniversity of Toronto mathematician Jacob Tsimerman wins Fields MedalUniversity of Toronto math professor Jacob Tsimerman has won the Fields Medal, the top global honour in mathematics.'
Big honour,' says 1st winner of prestigious prize at a Canadian institutionEmily Chung · CBC News · Posted: Jul 23, 2026 2:14 PM EDT | Last Updated: 19 minutes agoPlayListen to this articleEstimated 2 minutesThe audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results.
Jacob Tsimerman, a mathematics professor at the University of Toronto, accepts the prestigious Fields Medal in Philadelphia on Thursday. (Allie Ippolito/University of Toronto)Social SharingUniversity of Toronto math professor Jacob Tsimerman has won a 2026 Fields Medal, the top global honour in mathematics.He's the first mathematician based at a Canadian institution to win the award and the second Canadian.
Manjul Bhargava, who is Canadian but based at Princeton University, won the award in 2014.Tsimerman accepted the award at the International Mathematical Congress in Philadelphia on Thursday."It's a big honour, obviously, getting this award for me and my collaborators, who I'm very happy are being recognized, as well," he said.
Tsimerman stressed the importance of collaboration in mathematics in a video shown at the cere
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