Po-Shen Loh

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Po-Shen Loh
Po-Shen Loh.jpg
Po-Shen Loh
Native name
Born (1982-06-18) June 18, 1982 (age 36)
Alma materCalifornia Institute of Technology (BS)
Cambridge University (MASt)
Princeton University (PhD)
Scientific career
InstitutionsCarnegie Mellon University
Doctoral advisorBenny Sudakov

Po-Shen Loh (born June 18, 1982) is an associate professor of mathematics at Carnegie Mellon University[1] and currently the national coach of the United States' International Math Olympiad team.[2][3] Under his coaching, the team won the competition in 2015[4], 2016, and 2018, their first victories since 1994.[5][6] He had previously won a silver medal for the US as a participant in 1999.[7] Loh runs a popular course to train students for the William Lowell Putnam Mathematical Competition known as Putnam Seminar[8], and is the founder of the educational website Expii.[5][9][10] In alternating semesters he teaches CMU's undergraduate course on discrete mathematics and the graduate seminar on extremal combinatorics. [11] He graduated from the California Institute of Technology with a 4.3 GPA.


  1. ^ "Po-Shen Loh". Retrieved 2018-02-25.
  2. ^ "International Mathematical Olympiad". www.imo-official.org. Retrieved 2017-12-24.
  3. ^ Sostek, Anya (2017-08-14). "More than 300,000 students entered a math contest. The top score came from a 16-year-old in Pittsburgh Public Schools". Pittsburgh Post-Gazette. Retrieved 2017-12-28.
  4. ^ "They're No. 1: U.S. Wins Math Olympiad For First Time In 21 Years". All Things Considered. National Public Radio. 2015-07-18. Retrieved 2017-12-28.
  5. ^ a b Strauss, Valerie (2016-07-18). "U.S. students win prestigious International Math Olympiad — for second straight year". Washington Post. ISSN 0190-8286. Retrieved 2017-12-28.
  6. ^ "Count One More Gold For The U.S. — In Math". FiveThirtyEight. 2016-08-25. Retrieved 2017-12-28.
  7. ^ "International Mathematical Olympiad". www.imo-official.org. Retrieved 2018-03-25.
  8. ^ "Carnegie Mellon University Putnam Seminar". www.math.cmu.edu. Retrieved 2018-01-08.
  9. ^ Antonick, Gary (2016-07-08). "U.S. Team Wins First Place at International Math Olympiad". Wordplay Blog. The New York Times. Retrieved 2017-12-28.
  10. ^ Tyre, Peg (2016). "The Math Revolution". The Atlantic. Retrieved 2017-12-28.
  11. ^ http://www.math.cmu.edu/~ploh/teaching.shtml

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