Jeong-Seop Kim

Assistant Professor, Department of Mathematics Education, Sunchon National University
Email: jeongseop@scnu.ac.kr

In March 2026, I joined Sunchon National University as a faculty member. From September 2022 to February 2026, I was a postdoctoral fellow at Korea Institute for Advanced Study (KIAS), under the mentorship of Jonghae Keum and Young-Hoon Kiem. I received my PhD from KAIST in August 2022 under the supervision of Yongnam Lee.

Publications

(with Kiryong Chung) A remark on rational quartic curves in prime Fano threefolds of degree 22, preprint (arXiv:2606:18102), 8pp.
(with Kiryong Chung and Jaehyun Kim) Quartic curves in the quintic del Pezzo threefold, J. Math. Soc. Japan, to appear (arXiv:2505.09130).
(with Hosung Kim and Yongnam Lee) Positivity of the tangent bundle of rational surfaces with nef anticanonical divisor, Manuscripta Math., to appear (arXiv:2408.14411).
(with Kiryong Chung and Jaehyun Kim) Rational quartic curves in the Mukai-Umemura variety, J. Pure Appl. Algebra 229 (2025), 108102, 20pp. ⧉
(with Hosung Kim and Yongnam Lee) Bigness of the tangent bundle of a Fano threefold with Picard number two, Nagoya Math. J. 257 (2025), 104–133. ⧉
(with Kiryong Chung) An SL(3,ℂ)-equivariant smooth compactification of moduli space of rational quartic plane curves, J. Algebra 645 (2024), 94–115. ⧉
Bigness of the tangent bundles of projective bundles over curves, C. R. Math. 361 (2023), 1115–1122. ⧉
Stability of symmetric powers of vector bundles of rank two with even degree on a curve, Internat. J. Math. 33(1) (2022), 2250001, 36 pp. ⧉

Research Talks

🇹🇼 Projective manifolds with big tangent bundles (10ᵗʰ Pacific Rim Conference on Mathematics, Academia Sinica, June 16, 2026)

🇯🇵 Projective manifolds with big tangent bundles (Korakuen Algebraic Geometry Workshop 2026, Chuo University, January 31, 2026)

🇰🇷 Bigness of tangent bundles of projective bundles (School and Workshop on Vector Bundles on Algebraic Varieties, POSTECH, January 14, 2026)

🇰🇷 Weak del Pezzo surfaces with big tangent bundles (Perspectives in Algebraic Geometry, IBS-CCG, December 18, 2025)

🇰🇷 Moduli of rational curves on Fano threefolds (Workshop of Classical Moduli Theory and its Related Topics, Daegu, November 21, 2025)

🇵🇹 Weak del Pezzo surfaces with big tangent bundles (Workshop: Positivity and Hyperbolicity in Lisbon, University of Lisbon, July 2, 2025)

🇵🇱 Projective manifolds with big tangent bundles (Structures and Symmetries in Algebraic Geometry, Kraków, June 12, 2025)

🇰🇷 Positivity of tangent bundles on projective manifolds (Mini Workshop on Real and Complex Geometry, Daegu, May 17, 2025)

🇰🇷 Weak del Pezzo surfaces with big tangent bundles (IBS-CGP, April 15, 2025)

🇫🇷 Bigness of tangent bundles of Fano threefolds with Picard number ≥ 2 (Lightning talk at Winter School on K-stability, CIRM, March 3, 2025)

🇰🇷 Bigness of tangent bundles of manifolds of Picard number ≥ 2 (Workshop on Fano spherical varieties - 2025, Yonsei University, February 6, 2025)

🇨🇳 Smooth projective variety with big tangent bundle (Conference on Algebraic Geometry, TSIMF, December 25, 2024)

🇰🇷 Positivity of tangent bundles of weak del Pezzo surfaces (Korea University, October 29, 2024)

🇰🇷 Positivity of tangent bundles (Workshop on Mathematical Challenges 2024, KIAS, October 17 – 19, 2024)

🇰🇷 Positivity of tangent bundles and special rational curves (BK21 Geometry Seminar, Yonsei University, September 25, 2024)

🇰🇷 Classification of Algebraic Varieties and Geometry of Fano Varieties (Intensive Lecture at Busan, Pukyong National University, May 24 – 25, 2024)

🇰🇷 Geometry of Mukai-Umemura variety: A review (YeungNam Workshop on Algebraic Geometry XII, Yeungnam University, April 5 – 6, 2024)

🇰🇷 Stability of symmetric powers of vector bundles (2023 Symposium in Algebraic Geometry, Busan, January 3 – 5, 2024)

🇰🇷 Projective manifolds with big tangent bundles (Geometry and Topology Seminar, Pusan National University, December 4, 2023)

🇰🇷 Smooth projective varieties with big tangent bundles (Algebraic Geometry in East Asia 2023, KIAS, November 6, 2023)

🇰🇷 Stability of symmetric powers of vector bundles & Moduli of vector bundles and their operations (Gyeongsang National University, September 25 – 26, 2023)

🇰🇷 Bigness of the tangent bundles of projective bundles over curves (Poster Session at A Journey through Algebraic and Complex Geometry, Buyeo, September 11 – 15, 2023)

🇰🇷 Introduction to Vector Bundles I & II (Assistant Lectures at Conference on Derived Categories and Singularities in Algebraic Geometry, Gangneung, August 15 – 18, 2023)

🇰🇷 Tangent bundles of del Pezzo surfaces (Korea University, June 5, 2023)

🇰🇷 Projective manifolds with big tangent bundles (Special Session: Trends in Agebraic Geometry at 2023 KMS Spring Meeting, April 29, 2023)

🇰🇷 Fano manifolds with big tangent bundles (IBS-CGP, April 11, 2023)

🇰🇷 Curves on ruled surfaces (KIAS, December 22, 2022)

🇰🇷 Projective manifolds with big tangent bundles (SWAG12, Sogang University, December 15, 2022)

🇰🇷 Positivity of tangent bundles of smooth projective varieties (ASADCS, Chungnam National University, November 4, 2022)

🇰🇷 Ruled surfaces with a curve of zero self-intersection (Korea University, October 11, 2022)

🇰🇷 Bigness of tangent bundles of smooth projective varieties (KIAS, September 16, 2022)

🇰🇷 Positivity of tangent bundles of Fano threefolds (IBS-CCG, February 24, 2022)

🇰🇷 Stability of symmetric powers of vector bundles on a curve (IBS-CCG, May 13, 2021)

🇰🇷 Ruled surfaces with a k-section of zero self-intersection (Contributed Talk at 2020 KMS Annual Meeting, October 24, 2020)

Activities Organized

KIAS HCMC Algebraic Geometry Seminar (2023 – 2025)
Workshop of Classical Moduli Theory and its Related Topics (Daegu, November 20 – 22, 2025)
Conference on Recent Progress in Algebraic Geometry (Gangneung, November 4 – 8, 2024)
Exploring Algebraic Geometry & Topology (Yangpyeong, May 30 – June 1, 2023)
Budding Workshop in Algebraic Geometry (Dongtan, March 30 – April 1, 2023)

Teaching Experiences

Regular Courses at Sunchon National University (Spring 2026): Linear Algebra II, Number Theory, Modern Algebra II, Researches in Mathematics Education
TA at KAIST (2014 – 2020, Head TA during the last 3 semesters): Calculus I & II (Note for recitation classes on vector calculus), Introduction to Linear Algebra, and Modern Algebra I & II

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