Koji Imamura

Talks

Conference presentations, workshops, and seminars. Filter by type below.

25 talks

2026

  • 局所環上のモジュラ独立性を用いたマトロイドの表現問題について

    IMI暗号学セミナー

    West Building 1 4F Conference Room D414, Kyushu University Ito Campus, Fukuoka, Japan

    SeminarIn-personOralEvent:January 7, 2026Presented:16:00-17:00

2025

  • モジュラ独立性によるマトロイドの表現について

    デザインと符号および関連する組合せ構造2025

    4F Conference Room 1, Kumamoto City International Center, Kumamoto, Japan

    WorkshopIn-personOralEvent:December 13-14, 2025Presented:10:45-11:05
  • On the independence systems based on modular independence

    47th Australasian Combinatorics Conference (47ACC)

    Maclaurin Lecture Theatres LBLT118, Te Herenga Waka—Victoria University of Wellington, Kelburn Campus, Wellington, New Zealand

    InternationalIn-personOralEvent:December 1-5, 2025Presented:15:30-16:00
  • 有限環上の符号に対する臨界問題とその周辺

    数理・情報系研究集会 @ 熊本

    Conference Room 9, Kumamoto Prefectural Citizen Exchange Center Parea, Kumamoto, Japan

    WorkshopIn-personEvent:November 17-18, 2025Presented:10:20-11:00
  • 二元体上の極小ブロックの構成について

    COmbinatorics Summer school 2025 (COS 2025)

    Training Room 2, Fureai Hiroba Southern Cross, Beppu, Oita

    DomesticIn-personOralEvent:September 27-30, 2025Presented:09:20-09:40
  • マトロイド理論における臨界問題について

    第9回情報数理セミナー

    Tower Scuola 2F S201, Nihon University, College of Science and Technology, Surugadai Campus, Tokyo, Japan

    SeminarIn-personOralEvent:August 18-19, 2025Presented:14:30-16:30
  • 符号理論における特性準多項式とその計算

    Arrangement Days in NITech 2025

    Building 52 (3rd Floor) Room 5238, Nagoya Institute of Technology, Aichi, Japan

    WorkshopIn-personOralEvent:June 11-12, 2025Presented:16:00-17:00
  • On the Critical Problem in Coding Theory

    RIMS Workshop: New Developments in Combinatorics and Information Science

    Research Institute for Mathematical Sciences (RIMS) Room 110, Kyoto University, Kyoto, Japan

    WorkshopIn-personOralEvent:May 21-23, 2025Presented:10:00-11:00

2024

  • On the Critical Problem for codes over Z/qZ\mathbb{Z}/q\mathbb{Z}

    46th Australasian Combinatorics Conference (46ACC)

    Prentice 42-115, The University of Queensland, Brisbane, Australia

    InternationalIn-personOralEvent:December 2-6, 2024Presented:11:30-12:00
  • On the matroid representation over finite rings

    2024 Workshop on (Mostly) Matroids

    2nd Floor S236, IBS Science Culture Center, Daejeon, South Korea

    InternationalIn-personOralEvent:August 19-23, 2024Presented:12:05-12:30
  • 符号理論における臨界問題について

    第39回名古屋組合せ論セミナー

    Aichi Industry and Labor Center 15F, Aichi Prefectural University Satellite Campus, Aichi, Japan

    SeminarIn-personOralEvent:May 20, 2024Presented:17:15-18:45

2023

  • Matroid representation over finite rings

    45th Australasian Combinatorics Conference (45ACC)

    Blakers LT, The University of Western Australia, Perth, Australia

    InternationalIn-personOralEvent:December 11-15, 2023Presented:16:00-16:30
  • On the Theory of Blocks for Rank Metric Codes

    SIAM Conference on Applied Algebraic Geometry (AG23)

    AUD 4, Eindhoven University of Technology, Eindhoven, Netherlands

    InternationalIn-personOralMS107 q-Analogues in Combinatorics - Part II of IIIEvent:July 10-14, 2023Presented:11:00-11:25
  • 有限環上の行列を用いたマトロイドの表現について

    第6回 数理新人セミナー

    West Building 1 (D Wing) 4F Room 414 Track B, Kyushu University Ito Campus, Fukuoka

    DomesticIn-personEvent:February 20-23, 2023Presented:11:20-11:50

2022

  • Critical Problem for a qq-analogue of polymatroids

    44th Australasian Combinatorics Conference (44ACC)

    University of Otago, New Zealand

    InternationalOnlineOralSession 2Event:December 12-15, 2022Presented:17:00-17:25
  • ポリマトロイドに対する臨界定理のq-類似について

    Japanese Conference on Combinatorics and its Applications 2022 (JCCA-DMIA-2022)

    Building 5 Room 101 / Meeting Room B, Seikei University, Tokyo

    DomesticOnlineOralEvent:August 17-19, 2022Presented:09:30-09:55
  • A qq-analogue of Critical Theorem for polymatroids

    Applications of Computer Algebra 2022 (ACA 2022)

    Track 3, Gebze Technical University, Gebze, Istanbul, Turkey

    InternationalOnlineOralq-Analogues in Combinatorics: Matroids, Designs and Codes (S11)Event:August 15-19, 2022Presented:09:30-10:00

2021

  • On the representation of matroids over finite rings

    43rd Australasian Combinatorics Conference (43ACC)

    The University of Melbourne, Melbourne, Australia

    InternationalOnlineOralSession 2Event:December 13-17, 2021Presented:10:30-11:00
  • On the representation of matroids over a finite ring

    Japanese Conference on Combinatorics and its Applications 2021 (JCCA-DMIA-2021)

    South Building Room 422 / Meeting Room B, Keio University Mita Campus, Tokyo

    DomesticOnlineOralEvent:August 17-19, 2021Presented:16:15-16:35
  • 有限環上のマトロイドの表現問題について

    日本数学会 2021年度年会

    第VIII会場, Keio University Faculty of Science and Technology

    DomesticOnlineOralEvent:March 15-18, 2021Presented:09:30-10:45

2020

  • 有限環上の符号を用いたマトロイドの構成について

    2020年度応用数学合同研究集会

    Ryukoku University, Shiga

    DomesticOnlineOralEvent:December 18-20, 2020Presented:14:15-15:10
  • Generalization of Kung's bound to codes over rings

    The 15th International Student Conference on Advanced Science and Technology (ICAST) 2020 Online

    Room C, Kumamoto University, Kumamoto, Japan

    InternationalOnlineOralEvent:December 3-4, 2020Presented:
  • An upper bound on critical exponents of Zpm\mathbb{Z}_{p^{m}}-codes

    JCCA2020-DMIA2020-SGT9

    Meeting Room B, Online

    DomesticOnlineOralEvent:August 18-20, 2020Presented:14:40-15:00

2019

  • Critical problems for codes over Zpe\mathbb{Z}_{p^{e}}

    42nd Australasian Conference on Combinatorial Mathematics and Combinatorial Computing (42ACCMCC)

    Colombo LG2, University of New South Wales, Sydney, Australia

    InternationalIn-personOralEvent:December 9-13, 2019Presented:10:00-10:30
  • Critical Problem for Codes over Finite Rings

    Japanese Conference on Combinatorics and its Applications (JCCA-2019)

    2F Room 2E, National Institute of Technology, Miyakonojo College, Miyazaki

    DomesticIn-personOralb) Codes and CryptographyEvent:August 27-29, 2019Presented:10:15-10:35