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John V. Pardon
John V. Pardon
	Pardon receiving the 2017 Alan T. Waterman Award
Born	June 1989 (age 35); Chapel Hill, North Carolina, U.S.
Alma mater	Stanford University; Princeton University
Known for	Gromov's problem on distortion of knots; Proof of the 3 dimensional case of Hilbert–Smith conjecture
Awards	Morgan Prize (2012); Alan T. Waterman Award (2017); Clay Research Award (2022)
	Scientific career
Fields	Mathematics
Institutions	Princeton University ; Simons Center for Geometry and Physics
Doctoral advisor	Yakov Eliashberg

John Vincent Pardon (born June 1989) is an American mathematician who works on geometry and topology.^[1] He is primarily known for having solved Gromov's problem on distortion of knots, for which he was awarded the 2012 Morgan Prize. He is currently a permanent member of the Simons Center for Geometry and Physics and a full professor of mathematics at Princeton University.

Education and accomplishments

Pardon's father, William Pardon, is a mathematics professor at Duke University, and when Pardon was a high school student at the Durham Academy he also took classes at Duke.^[2] He was a three-time gold medalist at the International Olympiad in Informatics, in 2005, 2006, and 2007.^[3] In 2007, Pardon placed second in the Intel Science Talent Search competition, with a generalization to rectifiable curves of the carpenter's rule problem for polygons. In this project, he showed that every rectifiable Jordan curve in the plane can be continuously deformed into a convex curve without changing its length and without ever allowing any two points of the curve to get closer to each other.^[4] He published this research in the Transactions of the American Mathematical Society in 2009.

Pardon then went to Princeton University, where after his sophomore year he primarily took graduate-level mathematics classes.^[2] At Princeton, Pardon solved a problem in knot theory posed by Mikhail Gromov in 1983 about whether every knot can be embedded into three-dimensional space with bounded stretch factor. Pardon showed that, on the contrary, the stretch factor of certain torus knots could be arbitrarily large. His proof was published in the Annals of Mathematics in 2011, and earned him the Morgan Prize of 2012.^[2]^[5]^[6] Pardon also took part in a Chinese-language immersion program at Princeton, and was part of Princeton's team at an international debate competition in Singapore, broadcast on Chinese television. As a cello player he was a two-time winner of the Princeton Sinfonia concerto competition. He graduated in 2011, as Princeton's valedictorian.^[2]

He went to Stanford University for his graduate studies, where his accomplishments included solving the three-dimensional case of the Hilbert–Smith conjecture. He completed his Ph.D. in 2015, under the supervision of Yakov Eliashberg,^[7] and continued at Stanford as an assistant professor. In 2015, he was also appointed to a five-year term as a Clay Research Fellow.^[8]

Since fall 2016 (age 27), he has been a full professor of mathematics at Princeton University.^[9]