**Presentations**

● ``Canonical models of the stable maps space in Grassmannian", 2nd SSAG in HUFS, HUFS, Korea, Dec. 2016.

● ``Geometry of quiver representation space via rational curves", YeungNam Seminar on Algebraic Geometry I, Yeungnam University, Korea, Nov. 2016.

● ``Rational curve space via quiver representation space", Ulrich sheaves and syzygies, Bloomvista Resort, Yangpyeong, Korea, Sep. 2016.

● ``Mori program for the moduli space of conics in Grassmannian", Workshop on moduli and mirror symmetry, Alpensia Resort, Pyeong Chang, Korea, Aug. 2016.

● ``Cohomology computation of the moduli space of stable sheaves on P^2", 2016 Youngnam Mathematical Society Annual Meeting, Keimyung Univ., Daegu, Korea, Jun. 2016.

● ``Some remark on rational curves in the Del Pezzo threefold ", Seoul National University, Seoul, Korea, May 2016.

● ``Geometry of moduli spaces of rational curves in linear sections of Grassmannian Gr(2, 5)", Workshop on rational curves and moduli, Damyang Resort, Damyang, Korea, May. 2016.

● ``Stable maps of genus zero in the space of stable vector bundles on a curve", 2016 Workshop on Tensor Geometry and Zariski Spirits , Marina, Jeju, Korea, Feb. 2016.

● ``Cohomology ring of the moduli space of stable sheaves supported on quartic curves", Symposium in Algebraic Geometry, Rivera Hotel, Busan, Korea, Dec. 2015.

● “Rational curves in Fano varieties and its rationality problem”, AG Seminar, KIAS, Seoul, Korea, Dec. 2015.

● ``Rational curves in projective varieties", Kyungpook National University (Colloquium), Daegu, Korea, Nov. 2015.

● “Topology of the moduli space of sheaves and its related topics”, AG Seminar, KIAS, Seoul, Korea, June 2015.

● “Moduli of sheaves, Fourier-Mukai transform, and partial desingularization”, KIAS-AMSS Joint Conference- Algebraic geometry, Number theory and related topics, Beijing, China, May 2015.

● “On the geometry of the moduli space of pure sheaves supported on quartic space curves”, Projective geometry and syzygies, Warsaw, Poland, April 2015.

● “On the geometry of the moduli space of one-dimensional sheaves on Fano varieties”, Seminar talk, IBS-CGP, Pohang, Korea, February 2015.

● “Moduli of sheaves supported on quartic space curves”, Seminar talk, Fordham Univ., New York, USA, October 2014.

● “The spaces of rational curves in Fano threefolds”, CMC Seminar, CMC, Seoul, Korea, September 2014.

● “Birational geometry of the space of conics on Gr(2, 4)”, AG and CA Seminar, KIAS, Seoul, Korea, September 2014.

● ``BPS index for moduli space of stable sheaves on local P^2", Algebraic geometry in East Asia 2013, Beijing, China, October 2013.

● ``Nef cone of the moduli space of pure sheaves supported on the projective plane curves", 30th Algebra Camp, Alpensia resort Pyeong Chang, Korea, August 2013.

● ``Log minimal model program of the moduli space of pure sheaves on P^2", Muju workshop, Muju resort Muju, Korea, August 2013.

● ``Nef cone of the moduli space of sheaves via spectrum II, III", Mini-workshop on algebraic geometry, Chungwoon University Incheon, Korea, July 2013.

● ``Nef cone of the moduli space of sheaves via spectrum I", Algebraic geometry mini-workshop, Yeungnam University Gyeongsan, Korea, July 2013.

● ``Birational geometry of moduli spaces of pure sheaves", Postech, Pohang, Korea, May 2013.

● ``Bridgeland wall-crossings on the moduli space of pure sheaves", Geometry Journal Meeting, KIAS, Seoul, Korea, May 2013.

● ``BPS numbers on local P^2 via Bridgeland types wall-crossing", Geometry Journal Meeting, KIAS, Seoul, Korea, March 2013.

● ``Moduli of semistable sheaves via the relative Hilbert scheme", Symposium on Projective Algebraic Varieties and Moduli, Yeosu, Korea, February 2013.

● ``The geometry of moduli spaces of stable sheaves; Research Summary", Seminar talk, KIAS, Seoul, Korea, January 2013.

● ``Moduli spaces of one dimensional stable sheaves on P^2 via stable pairs", Kyungpook National University, Daegu, Korea, October 2012.

**Public Lectures**

- ``Donuts v. s. Ping-pong balls", Science Camp, Dongdaemun-Gu and KIAS, (Seoul, Korea), Jaunary 2015.

- ``Euler numbers", Science circle, Seoul Joongang Woman high school, (Seoul, Korea), November 2014.

- ``The number of holes", Science circle, Dongil Woman high school and KIAS, (Seoul, Korea), May 2014.

- ``Universe through the equation", Science Camp, Yeungju City and KIAS, (Seoul, Korea), August 2013.

- ``Intersection numbers of plane curves", Science Camp, Yeungju City and KIAS, (Seoul, Korea), August 2012.

- ``Counting infinite sets", Dobong Gifted and Talented Center in Duksung Women's Univ., (Seoul, Korea), October 2011.