Current-future
Cohomology Theories for Automorphic Forms and Enumerative Algebra, MFO(Math Forsch Oberwolfach), Germany, Aug 24-29, 2025 (Organized by Claudia Alfes-Neumann, Bielefeld, YoungJu Choie, Pohang, Anke Pohl, Bremen, Christopher Voll, Bielefeld)
2024 PANT (Pan Asia Number Theory Workshop), Hanoi, Vietnam, July 15-19, 2024
CIMPA, L-functions and Modular forms in Number Theory, BEIRUT, Lebanon June3-Jun 14, 2024
2024 NCTS, Taiwan-PMI, POSTECH Korea Joint workshop in Number Theory, Jan 8-11, Seoul, Korea
2023 PANT (Pan Asia Number Theory Conference), Harbin, China, Aug1-Aug6, 2023
Webinar in Number Theory 2022 French-Korean IRL in Mathematics, meeting on the first and 3rd Monday of every month from 5 pm (Korean time) start from Feb 7, 2022 ( has been started from May 3, 2021)-Current, Organized by L. Berger(ENS de Lyon), Y. Choie (POSTECH), B. Im (KAIST)
PAST
The 10th (2022) NCTS — POSTECH PMI Joint Workshop on Number Theory, 20221228-20221230 , (online) Organized by C-F. Yu, S. Cho and Y. Choie
2022 PMI-Lecture series by Prof Chia-Fu Yu (Academia Sinica, Taiwan) 2022 POSTECH-PMI Lecture series , mini-course on ““complex abelian varieties and Siegel modular varieties” online Zoom Nov 19, Nov 27, Dec 3, Dec 10, Dec 17, 20222022Fall_POSTECH_AV (1) (1)
Webinar in Number Theory 2022 French-Korean IRL in Mathematics, meeting on the first and 3rd Monday of every month from 5 pm (Korean time) start from Feb 7, 2022 ( has been started from May 3, 2021), Organized by L. Berger(ENS de Lyon), Y. Choie (POSTECH), B. Im (KAIST)
Scientific Committee Member, 2021 PANT-Kyoto, Pan Asia Number Theory Conference, Dec 6-Dec 10 , 2021
Scientific Committee Member (Number Theory), French-Korean Conference in Mathematics, Seoul, Korea (Tentative)(2022), University of Bordeaux (2019) (2016)
Organizer: 2021 POSTECH PMI-BRL Spring Number Theory Schedule (March-June 2021)
Co-organizer and Chair, Feb 27-28, 2021: The 45th KAST International Symposium, “Period of automorphic forms” (제45회 한림국제심포지엄 보형 형식의 주기이론 최신동향 Periods of Automorphic Forms ) online
2021 POSTECH Winter Number Theory Schedule January 6, 2021: 10 am-noon (Korean time) speaker: Dr. Junho Peter Whang (a C.L.E. Moore Instructor at MIT) Title: INTEGRAL POINTS OF CERTAIN MODULI SPACES IN GEOMETRY
January 13, 2021: 10 am-noon (Korean time) speaker: Prof. Min Lee ( Prof at U of Bristol) Title: APPLICATIONS OF THE KUZNETSOV TRACE FORMULA: MOMENTS OF RANKIN-SELBERG L-FUNCTIONS
January 20, 2021: 10 am-noon (Korean time) speaker: Dr. Serin Hong (a postdoc assistant professor at University of Michigan) Title: Classification theorems for vector bundles on the Fargues-Fontaine curve
February 3, 2021 : 10 am-noon (Korean time))speaker: Dr. Jinyoung Park (a postdoctoral member at IAS, Princeton) Title: INTRODUCTION TO RANDOM GRAPHS, AND SOME RECENT RESULTS ON THRESHOLD
Chair of Organizing committee, 2020 Korean Mathematical Society Annual meeting ( Spring ), online, Korea 20200703
Local Organizer, Annual Number Theory Workshop in Korea, POSTECH, Pohang 20200131-20200201
Scientific Committee Member, PAN ASIA NUMBER THEORY CONFERENCE, RIMS KYOTO JAPAN 20200712-20200717
Scientific Committee Member, Organizer, INAUGURAL FRANCE-KOREA CONFERENCE ON ALGEBRAIC GEOMETRY, NUMBER THEORY, AND PARTIAL DIFFERENTIAL EQUATIONS, INSTITUTE OF MATHEMATICS, UNIVERSITY OF BORDEAUX
Chair of Organizing committee, 2019 Korean Mathematical Society Annual Meeting ( Fall), Hongick University, Seoul, Korea 20191024-20191026
Scientific Committee Member, The international conference on number theory at HIT , Chian, July 18-20, 2019; http://hitnt.hit.edu.cn
Chair of Organizing committee, 2019 Korean Mathematical Society Annual meeting (Spring), Kangwon University, Chuncheon, Korea 20190419-20190420
Organizer, Intensive BRL-PMI Lecture series, Three lectures on “Borcherds products, Green functions, and their CM values” by Jan Bruinier (TU Darmstadt) and Three lectures on “Modular forms of half-integral weight: old and new results” Winfried Kohnen (Univ. of Heidelberg) 20190602-20190603
Organizer, 10 lectures on “Langlands conjecture and L-functions” by Solomon Friedberg and Lei Zhang, Math Build 404 at POSTECH, Pohang, Korea Feb 11-14, 2019 htto://pmi.postech.ac.kr
Scientific Committee member of the Joint meeting of KMS-DMU, Coex, Seoul, Korea, 20181003-20181006
Organizer (with B. Im and B. Oh) of Special Sessions on Automorphic Forms and Related Topics, the Joint meeting of KMS-DMU, Coex, Seoul, Korea, 20181003-20181006
Scientific committee member, Pan Asia Number Theory Conference 2018(25 29 Jun 2018), National University of Singapore, Singapore, Scientific Committee member
Organizer (with B. Im and B. Oh), Satellite Conference on Automorphic Forms and Related Topics, Oct. 3 (Wed), Seoul National University
Organizer, The International Conference for the 70th Anniversary of KMS, SNU, Seoul, Korea, Oct 22, 2016
Organizer, The second French-Korea Conference, Bordeux, France, 2016070420160712
Organizer, 2016 PANT in Taiwan, 20160711-20160715
Organizer with Winnie Li, 2016 NCTS-PMI Number Theory Workshop, POSTECH, Pohang Korea, 20160606-20160608
Organizer: D Zagier (13 lectures): 5 lectures on ”Partitions and Modular forms” April 3,4(2 hours),7,17, 2 lectures on ”Mirror symmetry, Gamma class and modular forms”, April 23, POSETCH Colloquium: (I) Zeta functions of Euler and Riemann; (II) Multiple zeta values from Euler to String theory”, May 1,, 4 lectures (One day workshop) on ”Differential equations and periods of modular forms”, 20150502
Organizer, J-P Serre (6 lectures), POSTECH, Pohang Korea, 20150302-20150313 (a) A chapter in finite group theory(100 min, 20150304) (b) Modular form mod 2(60 min, 20150306) (c) Cohomological invariants and Trace forms, II I( 20150310, 20150312) (d) Representations of finite groups: a review (POSTECH Math Colloquium, 20150313) (e) Organizer, H. Furusho(Nagoya University), p-adic Multiple Zeta values, POSTECH 20150103-20150108
Organizer, NCTS PMI joint workshop, Shinju, Taiwan 20141221-20141223
Organizer, Automorphic forms and Arithmetic, 2014 ICM Satellite conference, POSTECH, Korea, 20140825-20140828
Local Organizer, International Congress Mathematics, Seoul, Korea, 2014081320140826
Local Organizer, International Women congress Mathematics, Seoul, Korea, 20140811-20140814
Organizer, Pan Asia Number Theory Conference, POSTECH, Scientific Committee member, 20140805-20140810
Organizer, Applications of Automorphic forms in Number Theory, International Workshop, POSTECH, 2014412-2014415
Organizer and Invited Speaker, Number Theory Festival, to honor of Prof Jakyung Koo, KAIST, Korea, 20140222-20140222
Organizer, POSTECH Summer School Intensive Workshop on Fermat’s Last Theorem, POSTECH, Korea, 20130705-20130711
Organizer, Special Session (Number Theory) Organizer, Asian Congress Mathematics, Coex, Pusan, Korea, 20130630-20130704
Organizer, 2013 Pan Asian Number Theory Conference 2013, Hanoi, Vietnam, Scientific committee member, 20130722-20130726
Organizer PMI Workshop of Mathematics, Pohang, Korea 2013 2013052220130524
Organizer, 2013 Spring POSTECH Number Theory International Workshop (Main Speakers: Darmon, Bruinier, Kohnen, Matsumoto), POSTECH, Korea 20130307-20130308
Organizer (with Jeehoon Park), 2013 POSTECH Winterschool, P-adic motive and p-adic modular form, 20130111-20130118, POSTECH, Pohang
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Organizer with ( J.Coates, M.Kato and B. NGO and 5 more), The 5th PANT(Pan Asia Number Theory ), Indian Institute of Science Education and Research (IISER) Pune, 20120723-20120727
Organizer (with Yunseo. Choi), KIAS-POSTECH Workshop-L function, POSTECH, 20120611-20120614
Organizer ( with Jeehoon Park), Ilju School (International Summer School) Automorphic forms and Iwasawa Theory, POSTECH, Pohang, (Participant 60) 20120702-20120706
Organizer, Mock modular forms and Mock Jacobi forms, D Zagier 2012040120120430
Organizer ( with J Koo and M. Kim), The first Number Theory Festival, POSTECH, Pohang, Korea, 20120224-20120226
Organizer, POSTECH 2012 International Winter School-BSD conjecture, POSTECH, Korea, 20120108-20120117
Organizer with ( J.Coates, M.Kato and B. NGO and 5 more), The 4th PANT(Pan Asia Number Theory ), Beijing, Morningside Center, China, 20110822-20110826
Organizer (with Sug Shin(MIT)), Theta festival (Ilju Mathematics School), POSTECH, Korea, 20110813-20110819
Organizer(with Winnie Li), NCTS, The 3rd Taiwan-PMI, POSTECH workshop number Theory, POSTECH, Korea 20110724-20110726
Organizer with J.Bruinier, J.Coates, H.Darmon, J. Park and W.Kohnen, POSTECH Winter School on Serre’s modularity conjecture, Jan 14,15(preliminary) 17-21,2011 POSTECH, Pohang 20110114-20110121
Organizer, Special session in Number Theory, KMS Fall meeting, POSTECH , 20101026-20101027
Organizer with ( J.Coates, M.Kato and B. NGO and 5 more), PANT(Pan Asia Number Theory ) Workshop -Kyoto, 20100912-20100918
Organizer(with Jeehoon Park and Sug Shin) Congruences on modular forms and Galois representation, Ilju Summer School, POSTECH, Pohang, 2010071920100720
Organizer(with Winnie Li), Taiwan-Korea workshop-Number Theory, NTCSPOSTECH, NTCS 4th Flor, National Tsing-Hua Univ., Hsinchu, Taiwan 20100705-20100706 http://www.math.cts.nthu.edu.tw/actnews/actnews.php?Sn=1044
Organizer, Special session on ” Algebraic geometry and Number Theory” , The first joint meeting of the Chinese Mathematical Society and the Korean Mathematical Society, Chongjing, China, 20100518-20100522
Organizer, Special session on ”Automorphic forms and related topics”, KMS Spring Meeting Chung-Nam University, Daejeon, Korea, 20100424-20100425
Organizer: The first Taiwan-POSTECH workshop-Number Theory, joint with Winnie Li, POSTECH, POSTECH BSRI 20091219-20091220, special year program in Number Theory: Speakers: Yao-Han Chen (National Chiao Tung University) Cuspidal Q-rational torsion subgroup of J(Gamma) of level p Seunghwan Chang (POSTECH) Extensions of rank one (v, Gamma)-modules and crystalline representations Bumkyu Cho (POSTECH) Primes of the form x2 +ny2 satisfying x = 1 mod N, y = 0 mod N YoungJu Choie (POSTECH) Quasi-modular forms and L-functions Kentaro Ihara (POSTECH) Derivations and Automorphisms on the algebra of noncommutative power series. Jonas Kibelbek (National Center for Theoretical Sciences and Penn State University) On Atkin-Swinnerton-Dyer conjecture over number fields Subong Lim (POSTECH) Liftings of weak Maass forms Ling Lang (Iowa State University) Automorphy of Galois representations attached to noncongruence cuspforms and its applications Winnie Li (National Center for Theoretical Sciences and Penn State University) Recent developments in noncongruence modular forms Yunkyung Park (POSTECH) t- core partition identities Fu-Tsun Wei (National Tsing Hua University) Independence of Heegner points over function fields Yifan Yang (National Chiao Tung University) Monodromy of Picard Fuchs differential equations for Calabi-Yau threefolds Chia-Fu Yu (Academia Sinica, Taiwan) An explicit reciprocity law arising from superspecial abelian varieties) (53) Organizer: One day Number Theory workshop, POSTECH, POSTECH BSRI 2009 special year program in Number Theory (Speakers: Seunghwan Chang(POSTECH, Korea): Bounded extensions of (phi, Gamma)-modules; Bumkyu Cho(POSTECH, Korea) : Zagier duality for vector-valued modular forms; Dohoon Choi(AirospaceUniv, Korea): Poincare series and the divisors of modular forms; Yun Seo Choi (KIAS, Korea): Combinatorial interpretation for third and sixth order mock theta functions; Amanda Folsom (U. Wisconsin) : Kac-Wakimoto characters and universal mock theta functions: a closer look; Subong Lim (POSTECH): Jacobi Integral; Christopar Mark (MPI, Germany): Integrality of Fourier coefficients of vector-valued modular forms; Sinai Robins (NTU, Singapore): Conic theta functions and what they say about polytopes; Michael Woodbury (Univ. Wisconsin): Trilinear forms and subconvexity of the triple product L-function;)
Chair (with YunSeo Choi) KIAS-POSTECH International workshop-Modular forms and related Topics, POSCO International Center, 20090626-20090628 (Main Speakers: Y Funke, T.Yang and W.Kohnen)
Organizer(Scientific Committee member, Local Organizer), PANT-Pohang, Pohang Korea, 20090108-20090110
Main Organizer, Kyushu-POSTECH Joint workshop-Number theory and its related topics, POSTECH, Pohang Korea 20090106
Co-organizer, Codes, Invariants and Modular Forms, MPI, Germany, July7-11, 2008, (YoungJu Choie, Bernhard Heim, Pieter Moree, Gabriele Nebe, Patrick Sole ) 20080707-2008071131 http://www.mpimbonn.mpg.de/Events/This+Year+and+Prospect/Codes,+Invariants+and+Modular+Forms/ Codes, Invariants and Modular Forms
Co-organizer (YS Choi (KIAS), JS Park(KIAS)) Summer School on Spectral Theory of Automorphic Forms (G-KMS-series-AL-08-000), POSTECH, Korea, 20080811-20080814
Organizer, Number Theory Special Session, KMS Spring Meeting, Kyemyung, Korea (Spring April 26 2008)
Organizer, Number Theory Special Session, KMS Spring Meeting, Seoul National University (Spring 2007)
Organizer, Number Theory Special session, KMS Fall meeting, KAIST, Korea (Fall 2007)
Committee Member of the 11th IMA Conference on Cryptography and Coding, Cirencester, Dec 2007”.
Organizing Committee (Chair) The 4th International Workshop for Korean Women in Mathematics, ”Mathematics for the 21st-century science”, POSTECH, Pohang, 20070705-20070706
Programm organizer, KIAS-POSTECH-SNU International Number Theory workshop: Automorphic forms and L-functions, KIAS, Seoul, Korea, 2006120720061209
Organizing Committee member: Modular forms and Related Topics, Philadelphia, USA, 20060109-20060110
Organizer: SKLOIS Conference on Information Security and Cryptology, Beijing, China, 20051215-20051217
Special Session Chair(Computer Algebra and Cryptography) Asian Symposium on Computer Mathematics (ASCM 2005), KIAS, Seoul, Dec 8-10, 2005
Organizer: KIAS-POSTECH-SNU number theory workshop, KIAS, Seoul, Korea, 20041201-20041202
Organize: 2004 Number Theory Camp(International Speakers), POSTECH, 20040126-20040129
Organizer: The first KIAS-POSTECH international workshop-Number Theorymodular form, KIAS, Seoul, Korea, 20021204-20021206
Organizer: Mathematics of Public Key cryptography, KIAS, Seoul, Korea, 20010625-20010628