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Jacob Tsimerman

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Jacob Tsimerman
FRS
Born (1988-04-26) April 26, 1988 (age 38)
Kazan, Tatar ASSR, Russian SFSR, Soviet Union
EducationUniversity of Toronto (BSc)
Princeton University (PhD)
AwardsSASTRA Ramanujan Prize (2015)
Ribenboim Prize (2016)
Aisenstadt Prize (2017)
Coxeter-James Prize (2019)
New Horizons in Mathematics Prize (2022)
Ostrowski Prize (2023)
Fields Medal (2026)
Scientific career
FieldsMathematics
InstitutionsUniversity of Toronto
ThesisTowards an unconditional proof of the André-Oort Conjecture and surrounding problems (2011)
Peter Sarnak

Jacob Tsimerman (Russian: Яков Цимерман; born April 26, 1988) is a Soviet-born Canadian mathematician at the University of Toronto specialising in number theory and related areas. He was awarded the SASTRA Ramanujan Prize in the year 2015 in recognition for his work on the André–Oort conjecture and for his work in both analytic number theory and algebraic geometry.[1] In 2026, he received the Fields Medal for his work on O-minimality, Griffiths' conjecture, and the André-Oort conjecture.[2]

Early life and education

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Tsimerman was born on April 26, 1988 in Kazan, Soviet Union to a Russian-Jewish family.[3] In 1990, his family moved to Israel and then in 1996 to Canada. He attended the University of Toronto Schools for high school, where he represented Canada in the International Mathematical Olympiad in 2003 and 2004, winning gold medals both times with a perfect score in 2004.[4][5]

Tsimerman began his post-secondary studies at University College, University of Toronto, at the age of 16, where he graduated after 2 years in 2006 with a bachelor's degree in mathematics.[5][6] He obtained his PhD from Princeton in 2011[7] under the guidance of Peter Sarnak.[8]

Career

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Following his PhD, he had a post-doctoral position at Harvard University as a Junior Fellow of the Harvard Society of Fellows. In July 2014 he was awarded a Sloan Fellowship and he started his term as assistant professor in the Department of Mathematics at the University of Toronto, where he is now a full professor.[9]

In 2018, Tsimerman was an invited speaker at the International Congress of Mathematicians (ICM).[10] In 2019, he was awarded the Coxeter–James Prize by the Canadian Mathematical Society.[11] He is also one of winners of the 2022 New Horizons in Mathematics Prize, associated with the Breakthrough Prize in Mathematics. He was awarded for "outstanding work in analytic number theory and arithmetic geometry, including breakthroughs on the André-Oort and Griffiths conjectures".[12] In 2023, Tsimerman received the Ostrowski Prize.[13] He was elected a Fellow of the Royal Society in 2025.[14] Between 2025 and 2026, Tsimerman was a visiting professor at the Institute for Advanced Study.[15]

In 2026, Tsimerman was awarded the Fields Medal at ICM Philadelphia 2026 for his "contribution in the recasting of o-minimality as a fundamental method of arithmetic and complex algebraic geometry, and 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."[2]

Research

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Together with Jonathan Pila, Tsimerman demonstrated the André–Oort conjecture for Siegel modular varieties. Later, he completed the proof of the André–Oort conjecture for the Shimura variety by reducing the problem to the averaged Colmez conjecture which was proved by Xinyi Yuan and Shou-Wu Zhang as well as independently by Andreatta, Goren, Howard and Madapusi-Pera.[3] In 2021, Tsimerman, Jonathan Pila and Ananth Shankar published a full proof of the André–Oort conjecture.[6]

References

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  1. ↑ "Jacob Tsimerman Awarded 2015 SASTRA Ramanujan Prize". Princeton University. Archived from the original on March 24, 2017. Retrieved November 8, 2015.
  2. 1 2 "Fields Medals 2026". www.mathunion.org. Archived from the original on July 23, 2026. Retrieved July 23, 2026.
  3. 1 2 "Tsimerman Receives Aisenstadt Prize" (PDF). Notices of the American Mathematical Society. 65 (2): 191. February 2018. ISSN 1088-9477. Archived (PDF) from the original on January 6, 2026. Retrieved July 23, 2026.
  4. ↑ "Jacob Tsimerman – IMO results". Archived from the original on May 5, 2012.
  5. 1 2 Sasaki, Chris (July 23, 2026). "'Nobel Prize of mathematics': U of T mathematician Jacob Tsimerman awarded prestigious Fields Medal". U of T News. Archived from the original on July 23, 2026. Retrieved July 23, 2026.
  6. 1 2 Rinaldi, Luc (July 16, 2026). "Locked in an escape room with mathematician Jacob Tsimerman". www.begiant.ca. Archived from the original on July 23, 2026. Retrieved July 23, 2026.
  7. ↑ "Impressive breakthroughs by U of T's youngest faculty member in math, Jacob Tsimerman | Faculty of Arts & Science". October 1, 2019. Archived from the original on October 1, 2019. Retrieved October 21, 2021.
  8. ↑ "Jacob Tsimerman". Mathematics Genealogy Project. Archived from the original on July 7, 2020. Retrieved November 8, 2015.
  9. ↑ "Jacob Tsimerman". www.math.utoronto.ca. Archived from the original on July 24, 2026. Retrieved July 24, 2026.
  10. ↑ "ICM Plenary and Invited Speakers | International Mathematical Union (IMU)". www.mathunion.org. Archived from the original on May 19, 2024. Retrieved May 19, 2024.
  11. ↑ "Coxeter-James Prize – CMS-SMC". Archived from the original on May 13, 2024. Retrieved May 19, 2024.
  12. ↑ "Breakthrough Prize – Mathematics Breakthrough Prize Laureates – Jacob Tsimerman". breakthroughprize.org. Archived from the original on May 16, 2024. Retrieved May 19, 2024.
  13. ↑ "Ostrowski". ostrowski.ch. Archived from the original on May 16, 2024.
  14. ↑ "Exceptional scientists elected as Fellows of the Royal Society". Royal Society. May 20, 2025. Archived from the original on November 8, 2025. Retrieved May 22, 2025.
  15. ↑ "Jacob Tsimerman | Scholars | Institute for Advanced Study". www.ias.edu. March 20, 2023. Archived from the original on July 23, 2026. Retrieved July 23, 2026.
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