교수소개
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- 02-760-0541
- yunhyung@skku.edu
- 호암관 12층 51203호실
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관심분야
Symplectic Geometry Integrable system Lie group action
학력
- (Ph.D.) 2010.8 한국과학기술원(KAIST) 수학과
- (B.S.) 2004.2 한국과학기술원(KAIST) 수학과
약력/경력
- 2017.3 – 현재 성균관대학교 수학교육과 조교수.
- 2015.10 – 2017.2 IBS 기하학수리물리연구단(CGP), Research Fellow.
- 2014.9 – 2015.9 IST Lisbon (University of Lisbon), Portugal, Research Fellow.
- 2012.9 – 2012.12 Columbia University, USA, Visiting Scholar.
- 2011.9 – 2014.9 고등과학원(KIAS) Research Fellow.
- 2010.9 – 2011.8 한국과학기술원 Research Fellow.
학술지 논문
- (2023) Unique toric structure on a Fano Bott manifold. JOURNAL OF SYMPLECTIC GEOMETRY. 21, 3
- (2022) Small toric resolutions of toric varieties of string polytopes with small indices. COMMUNICATIONS IN CONTEMPORARY MATHEMATICS. 25, 01
- (2022) Enumeration of Gelfand-Cetlin type reduced words. ELECTRONIC JOURNAL OF COMBINATORICS. 29, 1
- (2021) Remark on the Betti numbers for Hamiltonian circle actions. COMPTES RENDUS MATHEMATIQUE. 359, 2
- (2021) Classification of six-dimensional monotone symplectic manifolds admitting semifree circle actions II. INTERNATIONAL JOURNAL OF MATHEMATICS. 32, 2
- (2021) Classification of six-dimensional monotone symplectic manifolds admitting semifree circle actions III. INTERNATIONAL JOURNAL OF MATHEMATICS. 32, 2
- (2020) Lagrangian fibers of Gelfand-Cetlin systems. ADVANCES IN MATHEMATICS. 372, 10
- (2020) LAGRANGIAN FIBERS OF GELFAND-CETLIN SYSTEMS OF SO(n)-TYPE. TRANSFORMATION GROUPS. 25, 4
- (2019) Monotone Lagrangians in flag varieties. INTERNATIONAL MATHEMATICS RESEARCH NOTICES.
- (2019) Classification of six-dimensional monotone symplectic manifolds admitting semifree circle actions I. INTERNATIONAL JOURNAL OF MATHEMATICS. 30, 6
- (2019) On the Chern numbers for pseudo-free circle actions. JOURNAL OF SYMPLECTIC GEOMETRY. 17, 1
- (2018) Hard Lefschetz property for Hamiltonian torus actions on 6-dimensional GKM manifolds. JOURNAL OF SYMPLECTIC GEOMETRY. 16, 6
- (2018) On the f-vectors of Gelfand-Cetlin polytopes. EUROPEAN JOURNAL OF COMBINATORICS. 67
- (2017) Embedded Surfaces for Symplectic Circle Actions. CHINESE ANNALS OF MATHEMATICS SERIES B. 38, 6
- (2016) HARD LEFSCHETZ PROPERTY OF SYMPLECTIC STRUCTURES ON COMPACT KAHLER MANIFOLDS. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY. 368, 11
- (2016) Unimodality of Betti numbers for Hamiltonian circle actions with index-increasing moment Maps. INTERNATIONAL JOURNAL OF MATHEMATICS. 27, 5
- (2016) Hamiltonian circle action with self-indexing moment map. MATHEMATICAL RESEARCH LETTERS. 23, 3
- (2015) Semifree Hamiltonian circle actions on 6-dimensional symplectic manifolds with non-isolated fixed point set. JOURNAL OF SYMPLECTIC GEOMETRY. 13, 4
- (2014) Unimodality of the Betti numbers for Hamiltonian circle action with isolated fixed points. MATHEMATICAL RESEARCH LETTERS. 21, 4
학술회의논문
- (2020) Classification of semifree monotone Hamiltonian S^1 manifolds. The 5-th Korea Toric Topology Winter Workshop. 대한민국
- (2019) String polytopes and their small resolutions. Pohang Mathematics Workshop 2019. 대한민국
- (2019) Betti numbers for Hamiltonian circle actions with isolated fixed points. Toric Topology 2019 in Okayama. 일본
- (2019) Small resolutions of string polytopes in low dimensions. 2019 KMS Annual Meeting. 대한민국
- (2019) Lie group actions on symplectic manifolds. The 4th KIAS Alumni Workshop in Mathematics. 대한민국
- (2018) Symplectic Geometry of Fano varieties. The 5th Sinchon Workshop on Algebraic Geometry. 대한민국
- (2018) Monotone Lagrangians in flag varieties. Matrix Factorizations and Mirror Symmetry. 대한민국
- (2018) Monotone Lagrangian tori in cotangent bundles of spheres. 2018 Joint Meeting of the KMS and GMS. 대한민국
- (2018) Monotone Lagrangian tori in cotangent bundles of spheres. Hayama Symposium on complex analysis in Several Variables XX 2018. 일본
- (2018) On Gelfand-Cetlin polytopes. The Japanese Conference on Combinatorics and its Applications. 일본
- (2017) Monotone Lagrangians in flag varieties. Pohang Mathematics Workshop. 대한민국
- (2017) Monotone Lagrangians in flag varieties. East Asian Symplectic Conference 2017. 중국
- (2017) Lagrangian fibers of Gelfand-Cetlin systems. BICMR & IBS-CGP JOINT SYMPLECTIC GEOMETRY WORKSHOP. 중국