# Heekyoung Hahn

- Assistant Research Professor of Mathematics

**External address:**220 Physics, Durham, NC 27708

**Phone:**(919) 660-2850

### Research Areas and Keywords

##### Algebra & Combinatorics

##### Analysis

##### Geometry: Differential & Algebraic

##### Number Theory

Number Theory in the large: Automorphic represenations, Trace formula, Laplacian eigenfunctions and Littlewood-Richardson coefficients

University-wide Excellence in Undergraduate Teaching. University of Illinois at Urbana--Champaign. 2002

University-wide Excellence in Undergraduate Teaching. University of Illinois at Urbana-Champaign. 2001

### Selected Grants

Re:boot Number Theory awarded by National Security Agency (Co-Principal Investigator). 2016 to 2018

Berndt, BC.* Ramanujan's Forty Identities for the Rogers-Ramanujan Functions.* American Mathematical Soc., 2007.

Getz, JR, and Hahn, H.* An introduction to automorphic representations with a view towards trace formulae.*. (Textbook)

Hahn, H. "On Classical groups detected by the triple tensor product and the Littlewood–Richardson semigroup." *Research in Number Theory* 2.1 (December 2016).
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Hahn, H. "On tensor third $L$-functions of automorphic representations of $GL_n(\mathbb {A}_F)$." *Proceedings of the American Mathematical Society* 144.12 (May 4, 2016): 5061-5069.
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Getz, JR, and Hahn, H. "A general simple relative trace formula." *Pacific Journal of Mathematics* 277.1 (2015): 99-118.
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Hahn, H, Akhtari, S, David, C, and Thompson, L. "Distribution of square-free values of sequences associated with elliptic curves." *Contemporary Mathematics* 606 (October 16, 2013): 171-188.

Getz, JR, and Hahn, H. "ALGEBRAIC CYCLES AND TATE CLASSES ON HILBERT MODULAR VARIETIES." *International Journal of Number Theory* 2 (2013): 1-16.

Hahn, H. "A simple twisted relative trace formula." *Int. Math. Res. Not.* 2009 (2009): 3957-3978. (Academic Article)

Hahn, H. "Eisenstein series associated with Γ0(2)." *The Ramanujan Journal* 15.2 (February 2008): 235-257.
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Hahn, H. "Convolution Sums of Some Functions on Divisors." *Rocky Mountain Journal of Mathematics* 37.5 (October 2007): 1593-1622.
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Hahn, H. "On zeros of Eisenstein series for genus zero Fuchsian groups." *Proceedings of the American Mathematical Society* 135.08 (March 29, 2007): 2391-2402.
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Ablowitz, MJ, Chakravarty, S, and Hahn, H. "Integrable systems and modular forms of level 2." *Journal of Physics A: Mathematical and General* 39.50 (December 15, 2006): 15341-15353.
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"A glamorous Hollywood star, a renegade composer, and the mathematical development of spread spectrum communications". abstract: During World War II, Hedy Lamarr, a striking Hollywood actress; together with George Antheil, a radical composer;... read more »

SWIM (Summer Workshop In Mathematics) is a 9-day workshop for female rising senior high school students interested in mathematics. All students currently in their junior year of high school are eligible to apply. Participants in the workshop will... read more »