Frank and Brennie Morgan Prize for Outstanding Research by An
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FROM THE AMS SECRETARY 2019 Frank and Brennie Morgan Prize for Outstanding Research in Mathematics by an Undergraduate Student RAVI JAGADEESAN was awarded the 2019 Frank and Brennie Morgan Prize for Outstanding Research in Mathematics by an Undergraduate Student at the 125th Annual Meeting of the AMS in Baltimore, Maryland, in January 2019. Citation Nihal Gowravaram). Then he went on to derive a new The recipient of the 2019 AMS- invariant for the action of the absolute Galois group of Q MAA-SIAM Frank and Brennie on the set of isomorphism classes of the so-called dessins Morgan Prize for Outstanding d’enfants (children’s drawings). In another paper, he gave Research in Mathematics by an a new proof of Serre’s characterization of regular local Undergraduate Student is Ravi rings (joint with Aaron Landesman). At Harvard, he has Jagadeesan of Harvard Univer- worked on the birational geometry of elliptic fibrations sity. Jagadeesan was selected and its connections to the combinatorics of hyperplane as the winner of the Prize for arrangements. His resulting award-winning senior thesis “[his] fundamental contribu- and three related papers (joint with Mboyo Esole, Steven tions across several topics in Jackson, Monica Kang, and Alfred Noël) lie at the interface pure and applied mathematics, of algebraic geometry, combinatorics, and string theory. Ravi Jagadeesan including algebraic geometry, Jagadeesan’s work in mathematical economics is in statistical theory, mathemati- the fields of matching theory, market design, and pub- cal economics, number theory, and combinatorics” from lic finance. In the view of his references, he brings deep a pool with outstanding candidates who impressed the mathematical insights and connections from multiple selection committee. His papers have been published or areas to the table. His papers in matching theory (joint accepted for publication in journals such as Proceedings of the London Mathematical Society, Electronic Journal of Com- with Tamás Fleiner, Zsuzsanna Jankó, Scott Kominers, Ross binatorics, Research in Number Theory, American Economic Rheingans-Yoo, and Alex Teytelboym) leverage topological Journal: Microeconomics, and Games and Economic Behavior. fixed-point theorems and ideas from general equilibrium Additionally, he has presented three papers at the Associa- to yield insights into the structure of equilibria in markets tion for Computing Machinery Conference on Economics with frictions. His work in market design streamlined the and Computation. analysis of proposed market-clearing mechanisms and Jagadeesan’s research in mathematics began early, when clarified the role of key mathematical assumptions. His he published combinatorics papers on pattern avoidance paper on optimal taxation with an endogenous growth for permutations in the context of (i) alternating permu- rate is described as being an important contribution to tations and (ii) Young’s diagrams and tableaux (joint with theoretical public finance. APRIL 2019 NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY 617 FROM THE AMS SECRETARY In addition to the above work, Jagadeesan has extended in Mathematics by an Undergraduate Student. I would like Ramsey theory via quasi-colorings to write a paper on to thank Mrs. Morgan, as well as the AMS, MAA, and SIAM, causal statistical inference in the presence of an underlying for establishing this prize and for recognizing me. graph or a network. Regarding this contribution, a reference I would also like to thank my many mentors—Markus letter writer states that they were most satisfied by Jagadee- Buehler, Noam Elkies, Mboyo Esole, Pavel Etingof, Zuming san’s “harnessing the beauty and power of mathematics Feng, John Geanakoplos, Tristan Giesa, Jerry Green, Joel to find structure in a messy real-world problem…making Lewis, Akhil Mathew, Natesh Pillai, John Rickert, David fundamental progress on an important problem of our Spivak, Stefanie Stantcheva, Alex Teytelboym, Alex Volfo- times.” Indeed, the committee members felt that this state- vsky, Shing-Tung Yau, and, especially, Scott Kominers—for ment could be applied as well to much of Jagadeesan’s work their advice and support over the years. in economics and other areas. Case in point: he has used I am grateful to the MIT Program for Research in Mathe- ideas from category theory to coauthor a Python library, matics, Engineering and Science, the Research Science Insti- Matriarch, for biomaterials architecture (joint with Tristan tute, and the Harvard Center of Mathematical Sciences and Giesa, David Spivak, and Markus Buehler). Applications for providing excellent work environments. I am also grateful for research and travel grants from Biographical Note: Ravi Jagadeesan Harvard Business School, the Harvard College Research Ravi Jagadeesan grew up in Naperville, Illinois. His in- Program, and the Harvard math department. Most of all, terest in mathematics was inspired at a young age by his I would like to thank my family—including my wonder- grandparents—all four of them mathematicians—and his ful grandparents, parents, and sister—for their love and parents—who are both computer scientists. He attended support. Phillips Exeter Academy in Exeter, New Hampshire, for high school, where he had the opportunity to take advanced Citation for Honorable Mention: Evan Chen courses in mathematics and develop his problem-solving Evan Chen is recognized with an Honorable Mention for skills. He graduated from Harvard with an AB summa cum the 2019 Frank and Brennie Morgan Prize for Outstanding laude in mathematics (with a minor in economics) and Research in Mathematics by an Undergraduate Student. He with an AM in statistics. has authored many papers in combinatorics and number He had the opportunity to work in several different theory, some as a single author and some in collaboration. areas of pure and applied mathematics—including alge- He has had papers accepted to the Proceedings of the AMS, braic geometry, combinatorics, number theory, statistical the Electronic Journal of Combinatorics, Research in Number theory, and mathematical economics—under a host of ad- Theory, and the International Journal of Number Theory. In visers. His first experience with mathematical research was joint work, he proved an elliptic curve version of Linnik’s during high school, when he was a student in the MIT math theorem. He answered an open question on balance con- department’s Program for Research in Mathematics, Engi- stants of posets and, in joint work, made progress on the neering, and Science (PRIMES). He then became interested long-studied problem of classification of Wilf-equivalence in exploring applied work and spent summers working on classes of patterns. He is currently a PhD student at the Mas- research in applied mathematics at the Center for Excel- sachusetts Institute of Technology, where he is supported lence in Education’s Research Science Institute (RSI) at MIT by an NSF Graduate Fellowship. and as an Economic Design Fellow at the Harvard Center of Mathematical Sciences and Applications (CMSA). He is Biographical Sketch: Evan Chen currently a student in Harvard’s PhD program in Business Evan Chen was born and raised in California and com- Economics, where he is a National Science Foundation pleted his undergraduate degree in Cambridge, Massachu- Graduate Research Fellow. setts. He is currently pursuing a PhD in mathematics at Jagadeesan earned a gold medal at the International the Massachusetts Institute of Technology, supported by Mathematical Olympiad in 2012 and was named a Putnam an NSF fellowship. Fellow in 2014. He received Harvard’s Jacob Wendell Schol- Besides research, Evan is deeply involved in the training arship Prize, and his senior thesis on “Crepant resolutions of the USA team for the International Math Olympiad of -factorial threefolds with compound Du Val singu- (IMO), after having won a gold medal himself in high ℚ larities” was awarded the Thomas Temple Hoopes Prize. school. Among other roles, he is the assistant academic Outside of mathematics and economics, he enjoys danc- director for the USA’s training camp and the coordinator for ing and is a member of the Harvard Ballroom Dance Team. the USA team selection tests. He is also the current chief of staff for the Harvard–MIT math tournament and the author Response from Ravi Jagadeesan of a popular MAA-published book in competitive geometry. It is a great honor to receive the 2019 AMS-MAA-SIAM Outside of math and teaching, Evan enjoys board games Frank and Brennie Morgan Prize for Outstanding Research and Korean pop dance. 618 NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY VOLUME 66, NUMBER 4 FROM THE AMS SECRETARY Response from Evan Chen soring this meaningful award. I am extremely thankful to It is a wonderful privilege to receive an Honorable Mention my advisor Jacob Fox for his help and support throughout for the 2019 Frank and Brennie Morgan Prize. I would like my undergraduate years, which has shaped my passion to thank Mrs. Morgan and the AMS, MAA, and SIAM for and understanding of combinatorics. I am also grateful to their generosity and support of undergraduate research. Yufei Zhao, who has given me useful advice throughout our I would like to acknowledge and thank Joe Gallian and collaboration. I am fortunate to have learned great math- Ken Ono for their mentorship and support during my un- ematics from Stanford math professors, particularly Amir dergraduate years. The three summers I spent at these REU Dembo, Persi Diaconis, Andrea Montanari, Lenya Ryzhik, programs were immensely productive learning and research Ravi Vakil, and Jan Vondrak. Last but not least, I would like experiences and contributed greatly to my development. I to thank my family and friends for their support, especially am also deeply grateful for their encouragement and advice. to my friend Phan-Minh Nguyen, who has provided me I would also like to extend thanks to my professors and with tremendous encouragement and insights through our teachers from the past several years, with particular thanks endless conversations in mathematics and statistics. to Zuming Feng, Po-Shen Loh, Zvezda Stankova, and Yan About the Prize Zhang.