Chi-Kang Chang (張繼剛 in Traditional Chinese)
24th September 1992
Algebraic geometry, especially about algebraic fibre spaces, birational geometry, and the positivity of (anti)canonical divisors
May. 2025-present, Special Postdoctoral Researcher, RIKEN iTHEMS（理化学研究所 数理創造研究センター 基礎科学特別研究員）
Aug. 2024-Apr. 2025, Postdoctoral Fellow, National Center of Theoretical Sciences (國家理論科學中心 博士後研究員)
Feb. 2019-Jul. 2019, Research Assistance, National Center of Theoretical Sciences (國家理論科學中心 研究助理)
Jul. 2024, PhD in Mathematics, National Taiwan University (國立台灣大學)
Feb. 2018, Master's Degree in Mathematics, National Taiwan University
Feb. 2016, Bachelor's Degree in Mathematics, National Taiwan University
Jun. 2022- Aug. 2023, Visiting Research Associate, The University of Tokyo（国立大学法人東京大学 大学院数理科学研究科 外国人協力研究員）, supported by NSTC Overseas Project for Post-Graduate Research (國科會補助博士生赴國外研究=博士生千里馬計畫)
Apr.17, 2025, Generalized Nonvanishing Conjecture and Iitaka Conjecture, Younger Generation of Algebraic Geometry 2025, National Taiwan University (held at Penghu)
Feb.26, 2025, Positivity of Canonical and Anticanonical Divisor, Taipei Postdoc Seminar, National Center of Theoretical Sciences
Sep.18, 2024, Positivity of anticanonical divisors in algebraic fibre spaces, Workshop on Algebraic Geometry over complex number field or in positive characteristic, Osaka Metropolitan University
Sep.09, 2024, Positivity of canonical and anticanonical divisors in algebraic fibre spaces, NCTS Postdoc Symposium, National Center of Theoretical Sciences
Jan.16, 2024, Generalized Nonvanishing Conjecture and Iitaka Conjecture, Okayama Algebraic Geometry Symposium, Okayama University
Dec.09, 2023, (Poster session) Positivity of anticanonical divisors in algebraic fibre spaces, NCTS-Kyoto Mathematics Symposium, National Center of Theoretical Sciences
Mar.01, 2023, Positivity of anticanonical divisors in algebraic fibre spaces, 4th Workshop of Algebraic Geometry in Utsunomiya University, Utsunomiya University
Nov.15, 2022, Positivity of anticanonical divisors in algebraic fibre spaces, Seminar on Algebraic Geometry, The University of Tokyo
Dec.10, 2021, Positivity of anticanonical divisors in algebraic fibre spaces, UTokyo-NTU Joint Conference, parallel session in Algebraic Geometry and Related Topics (via Zoom)
Oct.16, 2020, Positivity of anticanonical divisors, One-day Workshop in Algebraic Geometry, National Center of Theoretical Sciences (held at National Cheng-Kung University)
Jan.27, 2024, Twisted linear systems, II, Mini-Arbeitsgemeinschaft 2024 (Severi–Brauer varieties), National Taiwan University (held at Hualien)
Jul.02, 2021, Existence of Sections for RC Fibrations over Curves, NCTS Seminar in Algebraic Geometry, National Center of Theoretical Sciences (via Webex)
Jun.11, 2021, Structure of MRC, NCTS Seminar in Algebraic Geometry, National Center of Theoretical Sciences (via Webex)
Mar.05, 2021, Obstruction for Higher Order Deformations, NCTS Seminar in Algebraic Geometry, National Center of Theoretical Sciences
Nov.12, 2020, Ding stability, NCTS Workshop on K-stability, National Center of Theoretical Sciences (held at Fo Guang University)
Aug.07, 2020, Foliated MMP: Special Abundance, NCTS Seminar in Algebraic Geometry, National Center of Theoretical Sciences
Jun.11, 2019, Decomposition of Toric Morphism (II), NCTS Student Seminar on Toric Varieties, National Center of Theoretical Sciences
Jun.04, 2019, Decomposition of Toric Morphism (I), NCTS Student Seminar on Toric Varieties, National Center of Theoretical Sciences
Dec.29, 2016, Construction of Grothendieck Quot Schemes-Some Variants and Applications, NCTS-Student Seminar on Algebraic Geometry, National Center of Theoretical Sciences
Dec.22, 2016, Construction of Grothendieck Quot Schemes-Generic Flatness and Flattening Stratification, NCTS-Student Seminar on Algebraic Geometry, National Center of Theoretical Sciences
Dec.15, 2016, Construction of Grothendieck Quot Schemes-Castelnuovo-Mumford Regularity, NCTS-Student Seminar on Algebraic Geometry, National Center of Theoretical Sciences
National Taiwan University
Spring 2024: Teaching assistant, MATH2114 - Introduction to Algebra(II)
Fall 2023: Teaching assistant, MATH5287 - Algebraic Geometry(III)
Spring 2022: Teaching assistant, MATH5002 - Modern Algebra(II)
Fall 2021: Teaching assistant, MATH5001 - Modern Algebra(I)
Spring 2021: Teaching assistant, MATH5002 - Modern Algebra(II)
Fall 2020: Teaching assistant, MATH5001 - Modern Algebra(I)
Spring 2020: Teaching assistant, MATH5002 - Modern Algebra(II)
Fall 2019: Teaching assistant, MATH5001 - Modern Algebra(I)
Fall 2017: Teaching assistant, MATH1209 - Calculus(B)
Fall 2017: Teaching assistant, MATH5230 - Introduction to Complex Analysis
Spring 2017: Teaching assistant, MATH1202 - Calculus(A)(2)
Spring 2017: Teaching assistant, MATH2114 - Introduction to Algebra(II)
Fall 2016: Teaching assistant, MATH1201 - Calculus(A)(1)
Fall 2016: Teaching assistant, MATH2113 - Introduction to Algebra(I)
Mandarin (native)
Japanese (fluent, JLPT N1 level, J.TEST level B)
English (high-intermediate, TOEFL 80 pts, TOEIC 795 pts)
Dean’s Award (Doctor’s course), College of Science, National Taiwan University, Aug. 2024 (國立台灣大學 理學院院長獎)
Presidential Award for Graduate Students, National Taiwan University, Sep. 2024 (國立台灣大學 研究生校長獎)
TMS Outstanding Doctoral Thesis Prize, Gold Medal, The Mathematical Society of the Republic of China, Jan. 2025 (中華民國數學會 傑出博士論文金牌獎)