YoungJu Choie

YoungJu Choie (, born June 15, 1959)

Education and career Choie graduated from Ewha Womans University in 1982, After temporary positions at Ohio State University and the University of Maryland, she became an assistant professor at University of Colorado in 1989, and moved to POSTECH as a full professor in 1990. Choie was appointed as the University professor of POSTECH since 2022 till 2029. Choie became a Fellow of the American Mathematical Society in 2013.

Mathematical work Choie works on various aspects of Jacobi forms. Together with Winfried Kohnen, she has proved upper bounds on the first sign change of Fourier coefficients of cusp forms, generalizing the work of Siegel.

Selected works

Y. Choie, Y. Park and D. Zagier, Periods of modular forms on and Products of Jacobi Theta functions, Journal of the European Mathematical Society, Vol. 21, Issue 5, pp 1379–1410 (2019) R. Bruggeman, Y. Choie and N. Diamantis, Holomorphic automorphic forms and cohomology, Memoirs of the American Mathematical Society, 253 (2018), no. 1212, vii+167 pp. D. Bump and Y. Choie, “Schubert Eisenstein series”, American Journal of Mathematics Vol 136, No 6, Dec 2014, 1581-1608. Y. Choie and W. Kohnen, “The first sign change of Fourier coefficients of cusp forms”, American Journal of Mathematics 131 (2009), no. 2, 517-543. Y. Choie and D. Zagier, “Rational period functions for PSL(2, Z)”, Contemporary Mathematics, A tribute to Emil Grosswald: Number Theory and Related Analysis, 143, 89-108, 1993. (Book) Y. Choie and MH. Lee, "Jacobi-Like Forms, Pseudodifferential Operators, and Quasimodular Forms”, 318 pages, Springer Monographs in Mathematics on Springer Verlag 2019 (eBook ) (Book) M. Shi, Y. Choie, A. Sharma and P. Sole, “Codes and Modular forms”, World Scientific, (hardcover) | December 2019 Pages: 232

Service

Choie has been an editor of International Journal of Number Theory since 2004. In 2010–2011 she was editor-in-chief of the Bulletin of the Korean Mathematical Society. retrieved 2018-12-22. She was the first female mathematician who received (2018) the academic award of Korean Mathematical Society.