Hyeontae Jang
Department of Mathematics, Ajou University, 206, World cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
Education
Ph.D. in Mathmatics, Ajou University, 2020 –
M.S. in Mathmatics, Ajou University, 2018 – 2020
B.S. in Mathmatics, Ajou University, 2012 – 2018
Publications
S. Choi, H. Jang, M. Vallée, "Toric wedge induction and toric lifting property for piecewise linear spheres with a few vertices," 2024, arXiv:2404.15600, to appear in Journal of the London Mathematical Society.
S. Choi, T. Hwang, H. Jang, "Strong cohomological rigidity of Bott manifolds," Advances in Mathematics 473 (2025). https://doi.org/10.1016/j.aim.2025.110305.
S. Choi, H. Jang, "Stellar subdivisions, wedges and Buchstaber numbers," arXiv:2407.12400, to appear in Algebraic & Geometric Topology.
S. Choi, H. Jang, M. Vallée. "The characterization of (𝑛 − 1)-spheres with 𝑛 + 4 vertices having maximal Buchstaber number," Journal für die reine und angewandte Mathematik (Crelles Journal), vol. 2024, no. 811, 2024, pp. 267-292. https://doi.org/10.1515/crelle-2024-0027.
Preprints
S. Choi, H. Jang, M. Vallée, “Complete non-singular toric varieties with Picard number 4,” 2025, arXiv:2504.18134.
Conferenes
S. Choi, H. Jang, M. Vallée, "GPU Algorithm for Enumerating PL Spheres of Picard Number 4: Application to Toric Topology," 40th International Symposium on Computational Geometry (SoCG 2024), Leibniz International Proceedings in Informatics (LIPIcs), Vol. 293, pp. 41:1– 41:15.
Activities
2025 KMS Spring Meeting, KAIST, Daejeon, Korea, April, 24--26, 2025
ㅇ Title : Classification of complete non-singular toric varieties with Picard number 4
Workshop on Toric Topology, The Fields Institute, Toronto, Canada, August, 19--23, 2024
ㅇ Title : Seeds with maximal Buchstaber number
2023 KMS Special Conference with 2022 Fields Medalists, Seoul National University, Seoul, Korea, October 26--28, 2023
ㅇ Title : On the nonsingular complete toric varieties of Picard number 4
2023 Youngnam Mathematical Society Annual Meeting, Kyungpook National University Daegu Campus, Daegu, Korea, July 14--16, 2023
ㅇ Title : Toric lifting property of PL spheres of Picard number four
2023 Algebraic Geomety & Topology Workshop at CBNU, Chungbuk National University, Cheongju, Korea, July 12--14, 2023
ㅇ Title : The classification of PL spheres for toric manifolds of Picard number 4
2023 ANNUAL MEETING OF KKMS, Gangneung-Wonju National University Gangneung Campus, Gangneung, Korea, June 16--17, 2023
ㅇ Title : The lifting property of PL spheres of Picard number four
2022 Global KMS International Conference, The Korea Science and Technology Center, Seoul, Korea, October 18--21, 2022
ㅇ Title : The enumeration of toric colorable PL spheres with Picard number 4
2022 ANNUAL MEETING OF KKMS, Hankyung National University, Anseong, Korea, June 10--11, 2022
ㅇ Title : The enumeration of PL spheres for toric manifolds of Picard number 4
Toric Topology 2019 in Okayama and workshop for young researchers, Okayama University of Science, Okayama, Japan, November 18--21, 2019
ㅇ Title : Lower bound of the number of seed PL spheres of Picard number 4