Hello, I am an assistant professor at Kyonggi University.
My research interests are modular forms and related topics.
Contact Information
Department of Mathematics, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea
E-mail : youngmin.lee03@gmail.com or youngminlee@kyonggi.ac.kr
Employment
Assistant Professor, Department of Mathematics, Kyonggi University, Sep. 2025 - present
Research Fellow, School of Mathematics, KIAS, Mar. 2022 - Aug. 2025 (Mentors : Youn-Seo Choi (Mar. 2022 - Oct. 2023) and Hyun Kyu Kim (Nov. 2023 - Aug. 2025))
Education
Ph.D. in Mathematics, KAIST, Mar. 2016 - Feb. 2022 (Advisors : Sunghan Bae and Dohoon Choi)
B.S. in Mathematics, KAIST, Mar. 2012 - Feb. 2016
Visiting
Visiting Scholar, University of Bristol, Apr. 2023 - Jun. 2023
Publications and Preprints
Rankin-Cohen bracket for vector-valued modular forms (with S. Lim and W. Raji), preprint.
The number of automorphic representations of GL2 with exceptional eigenvalues (with D. Choi, M. Lee, and S. Lim), arXiv:2402.11761, submitted.
Equidistribution of the eigenvalues of Hecke operators (with D. Choi, M. Lee, and S. Lim), to appear in Math. Nachr.
Bol's identity for skew-holomorphic Jacobi forms (with S. Lim), J. Number Theory. 279 (2026), 216-237.
Newman's conjecture for the partition function modulo integers with at least two distinct prime divisors (with D. Choi), Adv. Math. 477 (2025), Paper No. 110367.
Fourier coefficients of Jacobi forms of real weight (with S. Lim), Int. J. Number Theory 20 (2024), no. 7, 1863 - 1893.
Number of proportions of Hecke eigenvalues in two newforms (with D. Choi), J. Number Theory. 249 (2023), 1-20.
Zagier dualities for real weights (with S. Lim), Acta Arith. 207 (2023), no. 3, 235-249.
Proportion of modular forms with transcendental zeros for general levels (with D. Choi, S. Lim, and J. Ryu), Proc. Japan Acad. Ser. A Math. Sci. 99 (2023), no. 2, 19-22.
The algebraic parts of the central values of quadratic twists of modular L-functions modulo l (with D. Choi), Res. Math. Sci. 9 (2022), no. 4, Paper No. 65.
Modular forms of half-integral weight on Γ0(4) with few non-vanishing coefficients modulo l (with D. Choi), Open Math. 20 (2022), no. 1, 1320-1336.
Density of modular forms with transcendental zeros (with D. Choi, and S. Lim), J. Math. Anal. Appl. 500 (2021), no. 2, 125-141.
Talks
The 11th East Asia Number Theory Conference, Aug. 2025, ``The number of Maass forms with exceptional eigenvalues''.
Number Theory in the Spirit of Ramanujan and Berndt, Jun. 2025, ``Newman's conjecture for the partition function''.
2025 KIAS-LFANT Winter School on Number Theory, Jan. 2025, ``Introduction to murmurations of elliptic curves''.
2024 KMS Fall Meeting, Oct. 2024, ``Classification of eta quotients whose derivatives are also eta quotients".
2024 KIAS-KRIMS-KWMS Summer School on Modular Forms and Partition Theory, Jun. 2024, ``Introduction to modular forms".
2024 Annual Number Theory Meeting, Feb. 2024, ``The number of Maass forms with exceptional eigenvalues''.
The 11th NCTS-POSTECH-PMI Joint Workshop on Number Theory, Jan. 2024, ``Applications of the Arthur-Selberg trace formula''.
Jeonbuk National University Seminar, Nov. 2023, ``Congruence properties for the partition function''.
2023 KMS Fall Meeting, Oct. 2023, ``The number of Maass forms with exceptional eigenvalues''.
2023 Pan Asian Conference of Number Theory, Aug. 2023, ``Newman's conjecture for the partition function''.
Heilbronn Number Theory Seminar, May. 2023, ``Newman's conjecture for the partition functions modulo composite numbers''.
The 10th East Asia Number Theory Conference, Feb. 2023, ``Congruence properties for the number of partitions''.
The 10th NCTS-POSTECH-PMI Joint Workshop on Number Theory, Dec. 2022, ``Congruence properties for the number of partitions''.
2022 Global KMS International Conference, Oct. 2022, ``Congruence properties for the number of partitions''.
2022 KMS Spring Meeting, Apr. 2022, ``The lower bound for the number of ratios of the Hecke eigenvalues of two newforms''.
UNIST Number Theory Seminar, Apr. 2022, ``The lower bound for the number of ratios of the Hecke eigenvalues of two newforms''.
2022 Number theory Seminar, Feb. 2022, ``Equidistribution of Hecke eigenvalues of automorphic representations over GL2(AK)''.
2021 Build a Network of Young Researchers in Mathematics II, ``Equidistribution of Hecke eigenvalues of automorphic representations over GL2(AK)''.
2021 YONSEI Workshop on Elliptic Curves, ``The algebraic parts of the central values of quadratics twists of modular L-functions modulo l''.
2021 KMS Spring Meeting, Apr. 2021, ``Mod l pseudo theta-forms and their applications to modular L-function''.
Award
Korea Undergraduate Math Problem Solving Contest, Gold Prize, 2015