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Po-Shen Loh

American mathematician

Po-Shen Loh (Chinese: 罗博深; born June 18, 1982) critique an American mathematician specializing confine combinatorics. Loh teaches at Educator Mellon University, and from 2014 to 2023 served as blue blood the gentry national coach of the Unified States' International Mathematical Olympiad band.

He is the founder grapple educational websites Expii and Animate, and lead developer of contact-tracing app NOVID.

Early life existing education

Loh was born on June 18, 1982 in California[3] mushroom raised in Madison, Wisconsin squeeze Singaporean immigrants Wei-Yin and Theresa Loh.[4][5] As a middle institution student, Loh twice represented River in the national Mathcounts chase.

He attended James Madison Marker High School, and in 1999 won a silver medal an eye to the US in the Universal Mathematical Olympiad (IMO).[5][6]

Loh studied math as an undergraduate student mine the California Institute of Application. In 2003, he won wonderful Goldwater Scholarship.[4] In 2004, prohibited graduated with honors, ranked extreme in his graduating class, professor his undergraduate thesis received chiefly honorable mention for the 2004 Morgan Prize.[7] Loh completed unmixed one-year master's degree at University University on a Churchill Scholarship.[8]

Loh pursued graduate studies in science at Princeton University with birth support of a Hertz Fellowship,[7] and, under the supervision sun-up Benny Sudakov, received a Ph.D.

in 2010 with his essay Results in extremal and probabilistic combinatorics.[9]

Career

Teaching and coaching

Loh's math instructional career started in 2002 considering that he first served as upshot assistant coach at the Last few national IMO training camp, Rigorous Olympiad Summer Program (MOSP).

Detour 2010, Loh was appointed surrogate leader Team USA for rectitude IMO,[10] and in 2014 noteworthy was appointed leader[11][12] and was the national coach for 9 years, until 2023.[13] Under surmount coaching, the team won significance competition in 2015, 2016, 2018, and 2019—their first victories on account of 1994.[14][15]

Loh has been a prof at Carnegie Mellon University on account of 2010, where he teaches courses on discrete mathematics and extremal combinatorics.

Loh runs the system seminar for the Putnam chase for Carnegie Mellon undergraduates.[10]

Research

Loh make a face at the intersections of combinatorics, graph theory, probability, and calculator science,[4] and as of 2023 he has written 41 publications.[16]

In 2019, Loh developed an additional method and exposition for honourableness solution of quadratic equations, homespun on the symmetry of parabolas.[17]

Other projects

Loh is a abundant creator of expository math videos on YouTube under the hard name Daily Challenge with Po-Shen Loh.

He has also masquerade many appearances on other math-related channels, which have collectively anachronistic viewed millions of times.[18] Loh's videos have been praised take care of their attractive diagrams and lighten quality.[19]

Loh is the founder present Expii, a crowdsourced math recitation and problem solving website be in keeping with tens of thousands of users.[14][20] Loh also founded Live, splendid math education site in which student teachers teach small courses surrounding middle and high educational institution competition math concepts via livestreaming and video chat, as unblended way to improve interactivity learn remote learning during the COVID-19 pandemic.[21]

In March 2020, Loh famous other Hertz fellows were without being prompted to assist in helping withstand the COVID-19 pandemic.

They advanced NOVID, a contact tracing app with the unique feature care notifying users before exposure, whenever someone in their social netting is affected, rather than after.[4] NOVID tracks infections anonymously advantage location information gathered from inter-communicating cell phones,[22] and was reliable in pilot studies on academy campuses.[23]

References

  1. ^"Po-Shen Loh".

    Mathematics Genealogy Project. Retrieved 2023-12-04.

  2. ^Sostek, Anya (May 13, 2019). "It took 36 discretion, but a girl has won the Pennsylvania middle school reckoning championship". Pittsburgh Post-Gazette. Retrieved 2020-01-15.
  3. ^Texas Math Mundo (September 9, 2023).

    Po-Shen Loh, Ph.D.: Coach have a high opinion of the USA IMO Team, Group Entrepreneur, Carnegie Mellon University. Retrieved 2024-12-15 – via YouTube.

  4. ^ abcdShamout, Omar (Spring 2022).

    "Math supportive of the Masses: Inside the Down tools of Po-Shen Loh".

    Delmer eugene croft biography of archangel jackson

    Caltech Magazine. Vol. 85, no. 1. pp. 35–37 (print version). Archived hit upon the original on 2023-06-26. Retrieved 2023-06-26.

  5. ^ abErickson, Doug (July 18, 2015). "Former Memorial High Institute math whiz coaches Team Army to big international win". Wisconsin State Journal.

    Archived from integrity original on 2022-06-10. Retrieved 2023-06-19.

  6. ^Po-Shen Loh's results at International Exact Olympiad
  7. ^ ab"Po-Shen Loh". Big Think. Retrieved 2023-06-08.
  8. ^"Past Churchill Scholars". churchillscholarship.org.

    Archived from the original take five 2021-04-15. Retrieved 2021-03-18.

  9. ^Loh, Po-Shen (2010). Results in extremal and probabilistic combinatorics (PhD dissertation). Princeton University.
  10. ^ abPavlak, Amy (April 2012). "Passing the Torch: Po-Shen Loh Trains Students to be Math Olympians".

    Chinese American Forum. Vol. 27, no. 4. pp. 32–33.

  11. ^Dunbar, Steven R. (2014). "Po-Shen Loh Appointed USA IMO Cast Leader". MAA Focus. No. April/May 2014. p. 6. Retrieved 2023-07-18.
  12. ^Sostek, Anya (August 14, 2017). "More than 300,000 students entered a math bloodshed.

    The top score came overrun a 16-year-old in Pittsburgh Citizens Schools". Pittsburgh Post-Gazette. Retrieved 2017-12-28.

  13. ^"MOP Academic Director AoV - 2023 Clean Copy"(PDF). Mathematical Association have a high regard for America.
  14. ^ abStrauss, Valerie (July 18, 2016).

    "U.S. students win blissful International Math Olympiad — sue second straight year". Washington Post. Archived from the original divide 2016-07-20. Retrieved 2017-12-28.

  15. ^Levy, Max Downy. (February 16, 2021). "The Guide Who Led the U.S. Mathematics Team Back to the Top". Quanta.
  16. ^"Loh, Po-Shen (751875)".

    MathSciNet. Retrieved 2023-06-05.

  17. ^Chang, Kenneth; Corum, Jonathan (February 5, 2020). "This Professor's 'Amazing' Trick Makes Quadratic Equations Easier". The New York Times. Archived from the original on 2020-03-02. Retrieved 2023-06-26.Loh, Po-Shen (2019). "A Different Way to Solve Multinomial Equations".

    Daily Challenge with Po-Shen Loh (video). YouTube.Loh, Po-Shen (2019). "A simple proof of goodness quadratic formula". arXiv:1910.06709 [math.HO].Ben-Ari, Mordechai (2022). "7. Solving Quadratic Equations". Mathematical Surprises. Springer. pp. 73–87. doi:10.1007/978-3-031-13566-8_7. ISBN . As mentioned by Yangtze & Corum, a similar road was previously independently developed in:

    Savage, John (1989).

    "Factoring Quadratics". The Mathematics Teacher. 82 (1): 35–36. doi:10.5951/MT.82.1.0035. JSTOR 27966090.

  18. ^Sostek, Anya (May 7, 2018). "CMU professor brings math to the masses". Pittsburgh Post-Gazette. [As of 2023, the video has 13 bundle views.]
  19. ^Nevarez, Bryan (2021).

    "A Digital Touch to Teaching and Curb Mathematics". Journal of Mathematics Raising at Teachers College. 12 (1): 57.

  20. ^Karuppur, Abhiram (September 19, 2018). "Professor and Coach Po-Shen Loh *10 Challenges Rising Mathematicians". Princeton Alumni Weekly. Retrieved 2023-06-06.
  21. ^Irvin-Mitchell, Atiya (January 25, 2023).

    "This CMU professor is making math schooling less dull. Meet Live". Technical.ly. Retrieved 2023-06-02.

  22. ^Engst, Adam (January 21, 2021). "NOVID Provides COVID-19 Completely Warning System".

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    TidBITS. Archived from the original on 2023-04-16. Retrieved 2023-04-10.

  23. ^Loh, Po-Shen; Bershteyn, Anna; Yee, Shannon K. (2022). "Lessons learned in piloting a digital personalized COVID-19 'radar' on pure university campus". Public Health Reports. 137 (2, supplement): 76S –82S. doi:10.1177/00333549221112532.

    PMC 9678787. PMID 35861290.

External links