This workshop aims to explore the theoretical and applied aspects of hyperplane arrangements, connecting them with topics such as machine learning, game theory, and information security. The event will provide a platform for researchers from different fields to exchange ideas and foster new collaborations.
Nishijin Plaza, Kyushu University, Fukuoka, Japan [Google Map]
All participants are kindly requested to register through the Conference Registration Form.
Please complete your registration by 1 Nov, 2026, if you'd like to join the banquet.
Banquet payment:
Please complete your banquet payment using the link below. Banquet is on 10 Nov. at 18:30--20:00 with posters.
You can also pay on site.
Posters are invited from researchers whose work is aligned with the themes of the workshop, and should present recent, original research or applications. To be considered, presenters are asked to submit your poster through the Poster Presentation Application Form.
The poster does not need to be in its final form at the time of submission; a draft or work-in-progress version is welcome.
Notes:
A0 size portrait.
Abstract submission deadline: October 5th, 2026.
Notification of acceptance: October 19th, 2026.
Mohamed Barakat (University of Siegen)
Thomas Britz (UNSW Sydney)
Carlos Cid (OIST & Simula UiB)
Junyan Chu (Kyoto University)
Emanuele Delucchi (SUPSI)
Kenji Fukumizu (Institute of Statistical Mathematics)
Alice L.L.Gao (Northwestern Polytechnical University)
Koji Imamura (Kyushu University)
Satoru Iwata (University of Tokyo)
Shota Maehara (Kyushu University)
Satoshi Murai (Waseda University)
Haru Negami (JAMSTEC)
Taihei Oki (Hokkaido University / The University of Osaka)
Hal Schenck (Auburn University)
Akimichi Takemura (Shiga University)
Hopein Christofen Tang (UNSW Sydney)
Keiji Tatsumi (Otemon Gakuin University)
Mehdi Tibouchi (NTT Corporation)
Shuhei Tsujie (Hokkaido University of Education)
Max Wakefield (US Naval Academy)
Takuro Abe (Rikkyo University)
Junyan Chu (Kyoto University)
Shizuo Kaji (Kyoto University)
Norihiro Nakashima (Nagoya Institute of Technology)
Yasuhide Numata (Hokkaido University)
Masaya Yasuda (Rikkyo University)
Shota Maehara (Kyushu University)
Hiroki Sasaki (Kyushu University)
Day 1 (9 Nov, Mon)
Afternoon session
(chair: Junyan Chu)
13:00 ~ 13:20 Registration
13:20 ~ 13:30 Opening: Junyan Chu
13:30 ~ 14:30 Satoru Iwata: Linear Matroid Parity: Algorithms and Applications
14:45 ~ 15:45 Emanuele Delucchi: Combinatorics and topology of arrangements: an introduction
16:00 ~ 17:00 Keiji Tatsumi: Approximate Multi-Objective Multi-Class Support Vector Machines Based on Geometric Margins
Day 4 (12 Nov, Thu)
Morning session
(chair: Shota Maehara)
10:00 ~ 11:00 Kenji Fukumizu: Flow Matching from Viewpoint of Proximal Operators
11:15 ~ 12:15 Haru Negami: Integrable transformation of Knizhnik-Zamolodchikov-type equation and its application to quantum computing
Afternoon session
(chair: Shizuo Kaji)
14:30 ~ 15:30 Akimichi Takemura: Some applications of theory of hyperplane arrangements to statistics
15:45 ~ 16:45 Shuhei Tsujie: MAT-partitions of braid arrangements, regular vines, and Arrow's single-peaked domains
17:00 ~ 18:00 Hal Schenck: Subarrangements of type A: the weak Lefschetz property of the Artinian Orlik-Terao algebra
Day 2 (10 Nov, Tue)
Morning session
(chair: Masaya Yasuda)
10:00 ~ 11:00 Mehdi Tibouchi: Indifferentiable hashing to elliptic curves
11:15 ~ 12:15 Carlos Cid: Cryptography from LPN: design, classical security and quantum attacks
Afternoon session
(chair: Norihiro Nakashima)
14:30 ~ 15:30 Hopein Christofen Tang: Column multiplicity approach to linear codes
15:45 ~ 16:45 Thomas Britz: Wei duality, Fomin-Greene duality and demimatroids
16:45 ~ 18:30 Poster Session
18:30 ~ 20:00 Poster + Food
Day 5 (13 Nov, Fri)
Morning session
(chair: Takuro Abe)
9:30 ~ 10:30 Shota Maehara: Combinatorial formality for certain free arrangements via lc-bases
10:45 ~ 11:45 Mohamed Barakat: The interplay between classical and constructive mathematics
12:00 ~ 13:00 Junyan Chu: A Saito-type criterion for generators of logarithmic derivation modules
13:00 ~ 13:10 Closing: Takuro Abe
Day 3 (11 Nov, Wed)
Morning session
(chair: Yasuhide Numata)
10:00 ~ 11:00 Koji Imamura: On the quasi-polynomial structure of weight enumerators
11:15 ~ 12:15 Taihei Oki: Exchangeability of Matroid Bases
Afternoon session
(chair: Shizuo Kaji)
14:30 ~ 15:30 Satoshi Murai: Graphic arrangements and Stanley-Reisner theory
15:45 ~ 16:45 Max Wakefield: Applications of Chain Characteristic Polynomials
17:00 ~ 18:00 Alice L.L.Gao: Equivariant inverse Z-polynomials of matroids
KAKENHI, Grant-in-Aid for Scientific Research (S) 25H00399
KAKENHI, Grant-in-Aid for Scientific Research (B) 25K00921
JST Moonshot R&D Grant Number JPMJMS2021
Joint Research Center, IMI, Kyushu University