### Research Talks

- Dirichlet problems for elliptic equations with singular drifts in Lipschitz domain, Joint Meeting of the Korean Mathematical Society and the German Mathematical Society, Oct 2018 (contribution talks).
- Elliptic equations with singular drifts in Lipschitz domain, Graduate student seminar at Yonsei Univ, September, 2018 (Host: Prof. Kyungkeun Kang).
- Elliptic equations with singular drifts in Lipschitz domain, Workshop for students in Analysis and PDE, July 2018.

### Learning Talks

- -boundedness of Cauchy integral operator on Lipschitz curves, KIAS Analysis&PDE Learning seminar
- Why Nash got Abel prize?, Sogang Graduate Student Seminar, Sep 2018.
- How to solve the law of nature?, Freshmen seminar at Sogang University, May 2018.
- Why Nash got Abel prize?, Quaternion (POSTECH undergraduate seminar), May 2017.
- On the -theory of parabolic and elliptic equations of second order, Night Seminar at KAIST, January 2017.
- Caccioppoli inequality for linear elliptic systems and stationary Stokes equation, Stupid Seminar, June 2016
- Equidistribution of Sequences, Workshop of Mathematics, Sogang University, Mar. 2016.
- Introduction to Singular Integral and its application to Partial Differential Equation, Hyundai-Chung Mong Koo Foundation Ondream Seminar, Nov. 2015.
- Sharp estimates of van der Corput’s lemma, Stupid Seminar, Sep 2015.
- Existence of arithmetric progression of length three, Stupid Seminar, Sep 2014.
- Fourier analysis and equidistribution of sequences, Stupid Seminar, May 2014.

### About LaTeX

- On some difficulties when we use LaTeX, 2018 KMS Spring Meeting (Special session: Tools and techniques of mathematical research and education), 2018. 04. 21
- Intensive lecture on LaTeX for mathematicians, UNIST, 2018.03.30.
- Lecture series on LaTeX for beginners: humanities and social sciences, 2018. 01. 16, 2018. 01. 18, 2018. 01. 23.
- Tikz in mathematics, Workshop for writing a document, Korean TeX Society, Kongju University, Nov. 2017
- Making a Beamer Class, Korean TeX Society Conference 2017, Dongguk University, Feb. 2017
- Lecture on Command and Environment, Workshop for writing a document, Korean TeX Society, Kongju University, Nov. 2016
- Making Jounral LaTeX Class, Korean TeX Society Conference 2016, Korea University, Jan. 2016.
- Mathematical Typesetting A to Z, Workshop for writing a document, Korean TeX Society, Kongju University, Nov. 2015.
- Making a program book and abstract book by TeX, Korean TeX Society Conference 2015, NIMS, Jan. 2015.
- Seoul ICM 2014 and LaTeX, Workshop for writing a document, Korean TeX Society, Kongju University, Nov. 2014.
- Introduction to LyX and comparison with TeX, Annual Meeting on Korean TeX Society, Hankuk University of Foreign Studies, Feb. 2014.