Presentation

Presentation

● ``Rational curves in Mukai-Umemura (MU) variety: A survey", Intensive Lecture at Busan, Pukyong National University, Korea, May, 2024.

● ``Rational curves in Mukai variety: Survey", YeungNam Workshop on Algebraic Geometry XII, Yeungnam University, Korea, Apr., 2024.

● "Rational curves in Fano varieties", Ewha Women University (Colloquium), Seoul, Korea, Apr., 2024.

● "Enumeration via moduli", The 4th Workshop on Geometry and Topology around Young-Nam , Daegu, Korea, September, 2023.

● "Incidence and Fano plane", The 4th Workshop on Geometry and Topology around Young-Nam , Daegu, Korea, September, 2023.

● "Rational curves and Fano plane",  Jeonju University (Colloquium), Jeonju, Korea, September, 2023.

● "Construction of quintic del Pezzo and Mukai variety", 2023 Buyeo Algebraic Geometry Workshop, Buyeo, Korea, August, 2023.

● "Survey on Mukai–Umemura threefold", Korea University (Seminar talk), Seoul, Korea, May, 2023.

● "Tensor space", Ewha Women University (Intensive talk), Seoul, Korea, May, 2023.

● "Rational curves in Fano varieties", Korea University (Colloquium), Seoul, Korea, Apr., 2023.

● "Survey on Mukai–Umemura threefold", IBS-CCG, Daejun, Korea, Jan., 2023 (cancelled).

● "Rational quartic curves in prime Fano $3$-folds" (poster presentation), Conference on Algebraic Geometry and Related Topics (Retierment  & 60th), Busan, Korea, Dec., 2022.

● "곡선의 집합족과 모듈라이", Joint workshop on algebraic geometry and mathematics education: First encounter, Dongtan, Korea, Dec., 2022.

● "Rational quartic curves in prime Fano $3$-folds" (poster presentation), Current Developments in Algebra and Topology 2022 (Joint workshop between Korea and Vietnam), Buyeo, Korea, Oct., 2022.

● "Rational curves in Fano varieties", Sungkyunkwan University (Colloquium), Suwon, Korea, Oct., 2022.

● "Double lines in the quintic del Pezzo fourfold", IBS-CGP,Phohang, Pohang, Korea, May, 2022.

● "Double lines in the quintic del Pezzo fourfold ", 제주 대수기하학 및 위상수학 세미나, Jeju, Korea, May, 2022.

● "Introduction to enumerative geometry", Workshop on mathematics at Raon, Jinju,  April. 2022.

● “BPS-numbers in CY 4, 5-folds", 제주 대수기하 워크샵 2021, April, Korea, 2021.

● "Introduction to Hilbert schemes via rational curves ", PMI-BRL & BK 21 FOUR Arithmetic Geometry Lecture Series (5 hours), Korea, July, 2021.

● "BPS-numbers in CY 4, 5-folds  ", Conference on Algebraic Geometry , Wonju, Korea, July, 2021.

● "DT-invariants on Fano 3-folds via K-classes",  부여 대수기하 워크샵 2021, Buyeo, Korea, June, 2021.

● "유리 곡선, 그 어느 곳에서나...  ",  BK 기하학 수요세미나, Yonsei University, Seoul, Korea, June, 2021.

●  “BPS-numbers in CY 4, 5-folds", 제주 대수기하 워크샵 2021, April, Korea, 2021.

●  “Foundation of Rational curves",  Recent Advances in Moduli and Invariants 2020 (Online conference),  Sep., Korea, 2020.

●  “Rational curves in Fano varities of the Picard group rank one",  Algebraic Geometry and Current trends in Mathematics (Online conference),  July,  Busan, Korea, 2020.

●  “Intersection cohomology of the moduli space of conics in V_5",  Meeting of the Korean Mathematical Society 2019, Oct. Seoul, Korea

●  "대수기하학의 관점에서의 유리곡선", Ulsan University (Colloquium), Ulsan, Korea, Oct., 2019.

●  "Geometry of Rational Curves ", UNIST (Colloquium), Ulsan, Korea, Sep., 2019.

●  "유리 곡선의 모듈라이 공간의 기하학 ",  Joint Workshop on Algebraic Geometry and Number Theory in Mokpo 2019, April,  Mokpo, Korea

●  "유리 곡선의 기하학 ",  Yonsei University (Colloquium), Seoul, Korea, April, 2019.

●  “Intersection cohomology of the moduli space of sheaves on local CY 3-fold via Kirwan's desingularization", Joint Meeting of the Korean Mathematical Society and the German Mathematical Society ,2018,  Oct.  Seoul, Korea

●  “Geometry of moduli spaces of rational curves in linear sections of Grassmannian”, Korean-Italian Meeting on Algebraic Geometry 2018, KIAS, Seoul, Korea, Jan. 2018.

●  ``Toward computation of the cohomology ring of the moduli space of the pure sheaves on del Pezzo surfaces", 3nd SWAG, Yonsei Univ, Korea, Nov. 2017.

●  ``Toward computation of the cohomology ring of the moduli space of the pure sheaves on del Pezzo surfaces", Seminar talk, KAIST, Korea, Nov. 2017.

●  ``Birational geometry of the moduli space of pure sheaves on quadric surface", First Spain South Korea bilateral workshop on Algebraic Geometry, Madrid, Spain, July 2017.

●  ``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.

●  ``Betti numbers of the moduli space of pure sheaves via stable pairs", Korea-Japan Joint Conference in Algebraic Geometry, Gunsan, Korea, August 2012.

●  ``Birational geometry of compactified spaces of rational curves in P^2", Postech, Pohang, Korea, March 2012.

●  ``Various compactifications of the rational Severi variety on the projective plane", Seoul National University, Seoul, Korea, March 2012.

●  ``Poincar\'e polynomials of the moduli spaces of pure sheaves via stable pairs", Symposium in Algebraic Geometry, Rivera Hotel, Busan, Korea, December 2011. 

●  ``Compactified moduli spaces of rational curves in a projective variety", Algebra Camp, Daemyung Resort, Korea, August 2011.

●  ``Compactifications of the space of smooth rational curves in projective varieties", Mini-workshop in Algebraic Geometry, Sogang University, Seoul, Korea, April 2011.

Public Lecture

- ``메탄과 대칭",  Gyeongsin High school, Daegu, Korea, May, 2024.

- ``도형의 개수세기와 대칭",  Keisung High school, Daegu, Korea, Apr., 2024.

- ``공학 도구를 활용한 기하 강의 설계 및 실제에 대한 소회", Jeonju, Korea, November, 2023.

- ``대수기하학자가 바라본 컴퓨터 대수 시스템의 교육적 역할에 대한 소고", Busan National University of Edu., Korea, November 2021.

- ``AI 시대, 수학 예비 교사의 역량(내용학 전공 교수의 제언)", Gangwon National Univ., Korea, June, 2021.

- ``수학 연구자의 길",  Kyungwon High School, Daegu, Korea, June, 2021.

- ``Geometry of motion and presentation", Hwikyung High School, Seoul, Korea, July 2018.

- ``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.