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News.  (Jan 6th, 2021)  A new paper “Interleaving by parts for persistence in a poset (with Memoli and Stefanou)” has been posted on arXiv.


Math 216D Office Hours: Thu 4:30-5:30PM and Fri 9-10AM

Research Meetings:

Email  woojin [AT] 

I’m a William W. Elliott Assistant Research Professor of Math at Duke University (Aug 2020 – July 2023):  Short_CV_Aug/05/2020

I am interested in the theoretical foundations for persistence theory in topological data analysis and their applications to dynamical systems. Also, I am interested in metric geometry.

I received a Math Ph.D. in May, 2020 from Ohio State. I was working under the guidance of Facundo Mémoli . Before that, I earned my Bachelor’s degree at Seoul National Univ. in South Korea.


woojin [AT] who is not also something of a poet will never be a complete mathematician.Karl Weierstrass