Invited Talks (2005~)
- Recent trends and challenging problems, KIAS, 2014.12.5, "Problems on moduli and invariants".
- Math Colloquium, Yonsei University, 2014.11.27, "Lines, conics and twisted cubics on Fano varieties".
- Math Colloquium, Postech, 2014.11.14, "Lines, conics and twisted cubics in Fano varieties".
- Algebraic geometry workshop, Pukyong University, 2014.8.22, "Lines, conics and twisted cubics in Fano 3-folds".
- ICM satellite conference on algebraic geometry, Daejeon, 2014.8.7, "Gopakumar-Vafa invariant and perverse sheaves".
- Geometry and Physics of Gauged Linear Sigma Model and its related topics, KIAS, 2014.7.29,"Cosection localized virtual fundamental classes".
- CGP seminar, Pohang, 2014.7.14, "Gopakumar-Vafa invariant and perverse sheaves".
- Summer school on algebraic geometry, Damyang, 2014.6.16~20, "Donaldson-Thomas invariants and categorification".
- Ladau-Ginzburg theory and Fano varieties Gyeongju, 2014.5.28, "Cosection localization of virtual fundamental classes".
- Plenary talk, KMS spring meeting, 2014.4.25, "Categorification of Donaldson-Thomas invariants by perverse sheaves".
- Math Colloquium, Seoul National University, 2014.4.10, "Categorification of Donaldson-Thomas invariants".
- Math Colloquium, Ewha University, 2013.9.26, "Categorified Donaldson-Thomas invariants".
- Pacific Rim Conference Mathematics, Sapporo, 2013.7.5, "Categorification of Donaldson-Thomas invariants".
- Mathematics Colloquium, University of Central Florida, 2013.4.4, "Algebraic geometry and quantum entanglement."
- Algebraic Geometry seminar, University of Illinois at Urbana-Champaign, 2013.3.12,"Gopakumar-Vafa invariants and perverse sheaves."
- Workshop
on moduli and birational
geometry, Busan, 2012.7.9, “Hilbert scheme of curves and Seiberg-Witten invariant."
-
Algebraic Geometry seminar, 2011.12.28,HKUST, "Moduli spaces of quasi-maps with perfect obstruction theories."
- Fudan-Sogang-Warwick
workshop on algebraic geometry, Guiyang China, 2011.8.8, “Poincare invariants
are Seiberg-Witten invariants.”
- Conference
in honor of David Giesekers 67th
birthday on Moduli and Stability, Hangzhou
China, 2011.7.20, “Moduli spaces of quasi-maps
with perfect obstruction theories.”
- Workshop
on moduli and birational
geometry, Gyeongju, 2011.7.11, “Wall crossing of
moduli spaces and invariants."
- Math
Colloquium, Hangyang University, 2011.4.29, “곡선의 정의란 무엇인가?”
- Workshop on Computational Aspects of Birational Geometry,
NIMS, 2011.3.29, "Moduli spaces of
quasi-maps to projective space with perfect obstruction theories."
- MOS seminar, Newton Institute of Math. Sci., Cambridge, 2011.1.25, "Kirwan blow-ups and moduli
spaces."
- Math Colloquium, Seoul National University, 2010.12.2, “곡선의 정의에 관하여."
- Waseda symposium on algebraic
geometry, 2010.11.10~13,Waseda University, “Birational geometry of moduli
spaces of curves.”
- KMS meeting, 2010.10.22, Postech , “Localization
of virtual cycles by cosections.”
- Workshop on moduli and birational
geometry, 2010.8.5~8, Postech , “Compactified moduli spaces
of curves in projective varieties.”
- NIMS
workshop on Invariant Theory and Related Topics, 2010.2.17~19, Inha University, “Elementary
construction of moduli spaces of pointed stable curves.”
- KMS-AMS
joint meeting, Ewha University, 2009.12.19,
Moduli spaces of rational curves in projective space.”
- RIMS
Conference on higher dimensional algebraic geometry, 2009.12.15,
RIMS-Kyoto, Japan, “On the birational geometry
of moduli spaces of rational curves in
projective space.”
- Math
Colloquium, Postech , 2009.11.27, “Rational
curves in projective spaces.”
- WCU
inauguration workshop, Sogang University,
2009.7.17, “Twisted cubic curves.”
- Algebraic
Geometry seminar, Fudan University, 2009.6.17, “On the birational geometry of moduli spaces of rational
curves in projective space.”
- 1st East
Asia Symplectic Conference, Academia Sinica , Taiwan, 2009.5.6-5.10, “On the cohomolgy of hyperkahler quotients.”
- Mathematics
Colloquium, Seoul National University, 2009.4.23, “Moduli
and Quotients."
- Algebraic
Geometry Seminar, Oxford University, 2009.2.10, “Moduli
theoretic compactifications of the space of
smooth rational curves."
- NIMS-SNU
Algebra Camp, Solbeach resort, 2009.2.4~2.5,
“Introduction to quiver varieties.”
- Workshop
on moduli spaces, Sogang
University, 2009.1.7, “ Moduli theoretic compactifications of the space of smooth rational
curves.”
- Math
Colloquium, KAIST, 2008.12.5, “Enumerative geometry and moduli spaces.”
- Algebraic
Geometry in East Asia, KIAS, 2008.11.11~11.15, “Hilbert scheme of twisted cubics via stable maps.”
- Gromov-Witten
theory and related topics, KIAS, 2008.6.9~6.13, “ Moduli
theoretic compactifications of the space of
twisted cubics .”
- 2nd NIMS
symposium on algebraic geometry, National Institute of Mathematics,
2008.5.12~5.15, “ Moduli theoretic compactifications of the space of twisted cubics .”
- Mathematics
Colloquium, 2008.4.30, Inha University, “히로나카의 특이점 해소정리에 대하여.”
- Workshop
on equivariant combinatorics ,
2008.2.27~28, Ajou University, “Introduction to equivariant cohomology theory.”
- Kyoto-SNU
joint symposium, 2008.2. 11, Kyoto RIMS, “ Gromov-Witten
invariants of varieties with holomorphic
2-forms.”
- Workshop
on moduli spaces, 2007.12.28, Sogang University, “Cohomology
of moduli spaces of stable maps to projective
space."
- Algebraic
Geometry and Commutative Algebra in Tokyo, 2007.12.10, Tokyo University,“
Gromov-Witten invariants of varieties with holomorphic 2-forms."
- Workshop
on Curve theory, 2007.11.24, Yeungnam
University, “Hilbert scheme of curves in projective space via Kontsevich moduli space.”
- Mathematics
Colloquium, 2007.11.1, Ewha University, “대수기하학에서 세는 문제에 관하여."
- Complex
and algebraic geometry seminar, 2007.9.14, Osaka University, Japan, “Moduli space of stable maps to projective space via
GIT.”
- SNU-Orsay joint symposium, 2007.8.29, Orsay
(Univ. Paris-sud ), France, “Moduli
spaces of stable maps to Fano manifolds."
- Pacific
Rim Complex Geometry Conference, 2007.8.10, Kobe, Japan, “Moduli spaces of stable maps to some Fano manifolds."
- SNU-Hokkaido
joint symposium, 2007.2.22, Sapporo, “Gromov-Witten
invariants of varieties with holomorphic two-forms."
- Winter
school on holomorphic symplectic
geometry, 2007.2.5, PyongChang , “Holomorphic Symplectic
Quotients.”
- Mathematics
Colloquium, 2006.11.16, Yonsei University,
“Enumerative geometry and Gromov -Witten theory.”
- Mathematics
Colloquium, 2006.9.28, Hanyang University,
“Enumerative geometry and intersection theory on moduli
spaces."
- Algebraic
Geometry Seminar, 2006. 2.10, Stanford University, “ Hecke
correspondence, stable maps and Kirwan’s partial
desingularization .”
- Algebraic
Geometry Seminar, 2006. 1.30, University of Oxford, “Hecke
correspondence, stable maps and partial desingularization."
- Algebraic
Geometry Progress Seminar, 2005. 11. 3, Stanford University, OGrady's
work on irreducible symplectic varieties.”
- AMS
Summer Institute on Algebraic Geometry, Seattle, 2005.7.28, "Desingularizations of
moduli spaces of rank 2 sheaves with trivial determinant."
- Vector
Bundles over Algebraic Curves, KIAS workshop (organized by J.-M. Hwang and
S. Ramanan ), 2005.4.14, "Desingularizations of the moduli space of rank 2 vector bundles."
- KAIST
Symposium on Algebraic Geometry and Number Theory, 2005.2.4, "Remarks on hyperkahler geometry."
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