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2022 Fiscal Year Annual Research Report

Development of Combinatorial Reconfiguration by Mathematics Approach: From Examples to New Methods

Planned Research

Project AreaFusion of Computer Science, Engineering and Mathematics Approaches for Expanding Combinatorial Reconfiguration
Project/Area Number 20H05795
Research InstitutionThe University of Electro-Communications

Principal Investigator

岡本 吉央  電気通信大学, 大学院情報理工学研究科, 教授 (00402660)

Co-Investigator(Kenkyū-buntansha) 神山 直之  九州大学, マス・フォア・インダストリ研究所, 教授 (10548134)
小関 健太  横浜国立大学, 大学院環境情報研究院, 准教授 (10649122)
垣村 尚徳  慶應義塾大学, 理工学部(矢上), 准教授 (30508180)
小林 佑輔  京都大学, 数理解析研究所, 准教授 (40581591)
野崎 雄太  広島大学, 先進理工系科学研究科(理), 助教 (40822648)
岩政 勇仁  京都大学, 情報学研究科, 助教 (70854602)
前澤 俊一  東京理科大学, 理学部第二部数学科, 助教 (70905934)
Project Period (FY) 2020-10-02 – 2023-03-31
Keywords組合せ遷移 / 数学 / 離散数学 / アルゴリズム / 計算複雑性
Outline of Annual Research Achievements

「組合せ遷移に対する数学理論」の構築を大目標として,主に次の研究を行った.
(1) 部分テーマ「組合せ遷移における数学活用事例の体系的収集」において,アルゴリズムゲーム理論における組合せ遷移問題に対して数学活用を行い,その結果を体系的に収集した.特に,社会ネットワーク上で各エージェントが二値選好を持つ場合において,アイテム割当が遷移する問題に対して,計算複雑性の解析,多項式時間アルゴリズムの設計を行った.この成果をマルチエージェントシステムの査読付き国際会議であるPRIMA 2022で発表した.
(2) 部分テーマ「組合せ遷移に資する数理手法の開発」において,凸多面体の組合せ論に関わる問題を組合せ遷移の視点から調査し,その計算複雑性を解明した.これはデータ構造や計算幾何で知られる未解決問題に関係しており,その問題に対するある種の一般化アプローチが難しい傍証を与えた.この成果を計算理論のトップ会議であるICALP 2023で発表した.
(3) 部分テーマ「組合せ遷移に資する数理手法の開発」において,グラフ彩色に関わる組合せ遷移問題をトポロジーの視点から解決した.この成果を計算幾何学のトップ会議であるSoCG 2023で発表した.
また,組合せ遷移に関する国際ワークショップ「Polytope Diameter and Related Topics」「Combinatorial Reconfiguration and Fixed-Parameter Tractability」を主催し,組合せ遷移研究の国際展開と普及に努めた.なお,研究期間延長 (繰越) のため,ここでは2022年と2023年に得られた実績を説明している.

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。

  • Research Products

    (96 results)

All 2024 2023 2022 Other

All Int'l Joint Research (6 results) Journal Article (49 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 40 results,  Open Access: 20 results) Presentation (36 results) (of which Int'l Joint Research: 17 results,  Invited: 7 results) Book (1 results) Remarks (1 results) Funded Workshop (3 results)

  • [Int'l Joint Research] ビンガムトン大学/コルゲート大学/バージニア・コモンウェルス大学(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      ビンガムトン大学/コルゲート大学/バージニア・コモンウェルス大学
    • # of Other Institutions
      1
  • [Int'l Joint Research] 復旦大学/青海師範大学/中国計量大学(中国)

    • Country Name
      CHINA
    • Counterpart Institution
      復旦大学/青海師範大学/中国計量大学
  • [Int'l Joint Research] リヨン大学/ボルドー大学/グルノーブル・アルプ大学(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      リヨン大学/ボルドー大学/グルノーブル・アルプ大学
  • [Int'l Joint Research] レニィ数学研究所/エトヴェシュ・ロラーンド大学(ハンガリー)

    • Country Name
      HUNGARY
    • Counterpart Institution
      レニィ数学研究所/エトヴェシュ・ロラーンド大学
  • [Int'l Joint Research] ブレーメン大学/ハインリッヒ・ハイネ大学デュッセルドルフ(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      ブレーメン大学/ハインリッヒ・ハイネ大学デュッセルドルフ
  • [Int'l Joint Research]

    • # of Other Countries
      12
  • [Journal Article] A graph minor condition for graphs to be k-linked2024

    • Author(s)
      Shun-ichi Maezawa
    • Journal Title

      European Journal of Combinatorics

      Volume: 116 Pages: 103874

    • DOI

      10.1016/j.ejc.2023.103874

    • Peer Reviewed
  • [Journal Article] A combinatorial algorithm for computing the entire sequence of the maximum degree of minors of a generic partitioned polynomial matrix with 2x2 submatrices2024

    • Author(s)
      Yuni Iwamasa
    • Journal Title

      Mathematical Programming, Series A

      Volume: 204 Pages: 27-79

    • DOI

      10.1007/s10107-023-01949-1

    • Peer Reviewed
  • [Journal Article] Reachability of fair allocations via sequential exchanges2024

    • Author(s)
      Ayumi Igarashi, Naoyuki Kamiyama, Warut Suksompong, Yuen Sheung Man
    • Journal Title

      Proc. of 38th AAAI Conference on Artificial Intelligence (AAAI 2024)

      Volume: -- Pages: 9773-9780

    • DOI

      10.1609/aaai.v38i9.28836

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The strongly stable matching problem with closures2024

    • Author(s)
      Naoyuki Kamiyama
    • Journal Title

      arXiv

      Volume: -- Pages: 2401.02666

    • DOI

      10.48550/arXiv.2401.02666

    • Open Access
  • [Journal Article] Modifying an instance of the super-stable matching problem2024

    • Author(s)
      Naoyuki Kamiyama
    • Journal Title

      arXiv

      Volume: -- Pages: 2402.11918

    • DOI

      10.48550/arXiv.2402.11918

    • Open Access
  • [Journal Article] Characterizations of the set of integer points in an integral bisubmodular polyhedron2024

    • Author(s)
      Yuni Iwamasa
    • Journal Title

      Discrete Mathematics

      Volume: 347 Pages: 113855

    • DOI

      10.1016/j.disc.2023.113855

    • Peer Reviewed
  • [Journal Article] CoRe Challenge 2022/2023: Empirical evaluations for independent set reconfiguration problems (Extended Abstract)2024

    • Author(s)
      Takehide Soh, Tomoya Tanjo, Yoshio Okamoto, Takehiro Ito
    • Journal Title

      Proc. of 17th International Symposium on Combinatorial Search (SoCS 2024)

      Volume: -- Pages: 掲載予定

    • Peer Reviewed
  • [Journal Article] H-colorings for 4-regular graphs2024

    • Author(s)
      Analen A. Malnegro, Kenta Ozeki
    • Journal Title

      Discrete Mathematics

      Volume: 347 Pages: 113844

    • DOI

      10.1016/j.disc.2023.113844

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A note on 3-distance coloring of planar graphs2024

    • Author(s)
      Morteza Hasanvand, Kenta Ozeki
    • Journal Title

      Bulletin of the Iranian Mathematical Society

      Volume: 50 Pages: 25

    • DOI

      10.1007/s41980-023-00848-7

    • Peer Reviewed
  • [Journal Article] randomized counter-based algorithms for frequency estimation over data streams in O(log log N) space2024

    • Author(s)
      Naonori Kakimura, Riku Nitta
    • Journal Title

      Theoretical Computer Science

      Volume: 984 Pages: 114317

    • DOI

      10.1016/j.tcs.2023.114317

    • Peer Reviewed
  • [Journal Article] Pareto efficient matchings with pairwise preferences2023

    • Author(s)
      Naoyuki Kamiyama
    • Journal Title

      Theoretical Computer Science

      Volume: 948 Pages: 113707

    • DOI

      10.1016/j.tcs.2023.113707

    • Peer Reviewed
  • [Journal Article] Reconfiguring (non-spanning) arborescences2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Yasuaki Kobayashi, Yu Nakahata, Yota Otachi, Kunihiro Wasa
    • Journal Title

      Theoretical Computer Science

      Volume: 943 Pages: 131-141

    • DOI

      10.1016/j.tcs.2022.12.007

    • Peer Reviewed
  • [Journal Article] A framework to design approximation algorithms for finding diverse solutions in combinatorial problems2023

    • Author(s)
      Tesshu Hanaka, Masashi Kiyomi, Yasuaki Kobayashi, Yusuke Kobayashi, Kazuhiro Kurita, Yota Otachi
    • Journal Title

      Proc. of 37th AAAI Conference on Artificial Intelligence (AAAI 2023), AAAI-23 Technical Tracks 4

      Volume: 37 Pages: 3968-3976

    • DOI

      10.1609/aaai.v37i4.25511

    • Peer Reviewed
  • [Journal Article] Arithmetic progressions, quasi progressions, and Gallai-Ramsey colorings2023

    • Author(s)
      Yaping Mao, Kenta Ozeki, Aaron Robertson, Zhao Wang
    • Journal Title

      Journal of Combinatorial Theory, Series A

      Volume: 193 Pages: 105672

    • DOI

      10.1016/j.jcta.2022.105672

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A 2-bisection with small number of monochromatic edges of a claw-free cubic graph2023

    • Author(s)
      Seungjae Eom, Kenta Ozeki
    • Journal Title

      Graphs and Combinatorics

      Volume: 39 Pages: 1-18

    • DOI

      10.1007/s00373-023-02611-5

    • Peer Reviewed
  • [Journal Article] Monotone edge flips to an orientation of maximum edge-connectivity a la Nash-Williams2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      ACM Transactions on Algorithms

      Volume: 19 Pages: 6

    • DOI

      10.1145/3561302

    • Peer Reviewed
  • [Journal Article] Graphs with large total angular resolution2023

    • Author(s)
      Oswin Aichholzer, Matias Korman, Yoshio Okamoto, Irene Parada, Daniel Perz, Andre van Renssen, Birgit Vogtenhuber
    • Journal Title

      Theoretical Computer Science

      Volume: 943 Pages: 73-88

    • DOI

      10.1016/j.tcs.2022.12.010

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reconfiguration of time-respecting arborescences2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naoyuki Kamiyama, Yasuaki Kobayashi, Yusuke Kobayashi, Shun-ichi Maezawa, Akira Suzuki
    • Journal Title

      Proc. of 18th Algorithms and Data Structures Symposium (WADS 2023), Lecture Notes in Computer Science

      Volume: 14079 Pages: 521-532

    • DOI

      10.1007/978-3-031-38906-1_34

    • Peer Reviewed
  • [Journal Article] Rerouting planar curves and disjoint paths2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naonori Kakimura, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      Proc. of 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP 2023), Leibniz International Proceedings in Informatics

      Volume: 261 Pages: 81:1-81:19

    • DOI

      10.4230/LIPIcs.ICALP.2023.81

    • Peer Reviewed / Open Access
  • [Journal Article] Reconfiguration and enumeration of optimal cyclic ladder lotteries2023

    • Author(s)
      Yuta Nozaki, Katsuhisa Yamanaka, Kunihiro Wasa
    • Journal Title

      Proc. of 34th International Workshop on Combinatorial Algorithms (IWOCA 2023), Lecture Notes in Computer Science

      Volume: 13889 Pages: 331-342

    • DOI

      10.1007/978-3-031-34347-6_28

    • Peer Reviewed
  • [Journal Article] Fixed-parameter algorithms for graph constraint logic2023

    • Author(s)
      Tatsuhiko Hatanaka, Felix Hommelsheim, Takehiro Ito, Yusuke Kobayashi, Moritz Muhlenthaler, Akira Suzuki
    • Journal Title

      Theoretical Computer Science

      Volume: 959 Pages: 113863

    • DOI

      10.1016/j.tcs.2023.113863

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Reconfiguration of spanning trees with degree constraints or diameter constraints2023

    • Author(s)
      Nicolas Bousquet, Takehiro Ito, Yusuke Kobayashi, Haruka Mizuta, Paul Ouvrard, Akira Suzuki, Kunihiro Wasa
    • Journal Title

      Algorithmica

      Volume: 85 Pages: 2779-2816

    • DOI

      10.1007/s00453-023-01117-z

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Feedback vertex set reconfiguration in planar graphs2023

    • Author(s)
      Nicolas Bousquet, Felix Hommelsheim, Yusuke Kobayashi, Moritz Muhlenthaler, Akira Suzuki
    • Journal Title

      Theoretical Computer Science

      Volume: 979 Pages: 114188

    • DOI

      10.1016/j.tcs.2023.114188

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On reachable assignments under dichotomous preferences2023

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      Theoretical Computer Science

      Volume: 979 Pages: 114196

    • DOI

      10.1016/j.tcs.2023.114196

    • Peer Reviewed
  • [Journal Article] Algorithmic theory of qubit routing2023

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yoshio Okamoto
    • Journal Title

      Proc. of 18th Algorithms and Data Structures Symposium (WADS 2023), Lecture Notes in Computer Science

      Volume: 14079 Pages: 533-546

    • DOI

      10.1007/978-3-031-38906-1_35

    • Peer Reviewed
  • [Journal Article] Reconfiguration of the union of arborescences2023

    • Author(s)
      Yusuke Kobayashi, Ryoga Mahara, Tamas Schwarcz
    • Journal Title

      Proc. of 34th International Symposium on Algorithms and Computation (ISAAC 2023), Leibniz International Proceedings in Informatics

      Volume: 283 Pages: 48:1-48:14

    • DOI

      10.4230/LIPIcs.ISAAC.2023.48

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Note on fair game edge-connectivity of graphs2023

    • Author(s)
      Michitaka Furuya, Naoki Matsumoto, Yumiko Ohno, Kenta Ozeki
    • Journal Title

      Discrete Applied Mathematics

      Volume: 333 Pages: 132-135

    • DOI

      10.1016/j.dam.2023.03.024

    • Peer Reviewed
  • [Journal Article] A spanning tree with at most k leaves in a K_{1,p}-free graph2023

    • Author(s)
      Kenta Ozeki, Masao Tsugaki
    • Journal Title

      The Electronic Journal of Combinatorics

      Volume: 30 Pages: 4.29

    • DOI

      10.37236/11698

    • Peer Reviewed
  • [Journal Article] Deterministic primal-dual algorithms for online k-way matching with delays2023

    • Author(s)
      Naonori Kakimura, Tomohiro Nakayoshi
    • Journal Title

      Proc. of 29th International Computing and Combinatorics Conference (COCOON 2023), Lecture Notes in Computer Science

      Volume: 14423 Pages: 238-249

    • DOI

      10.1007/978-3-031-49193-1_18

    • Peer Reviewed
  • [Journal Article] Reconfiguration of colorings in triangulations of the sphere2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      Proc. of 39th International Symposium on Computational Geometry (SoCG 2023), Leibniz International Proceedings in Informatics

      Volume: 258 Pages: 43:1-43:16

    • DOI

      10.4230/LIPIcs.SoCG.2023.43

    • Peer Reviewed / Open Access
  • [Journal Article] Characterizations of the set of integer points in an integral bisubmodular polyhedron2023

    • Author(s)
      Yuni Iwamasa
    • Journal Title

      arXiv

      Volume: -- Pages: 2303.06320

    • DOI

      10.48550/arXiv.2303.06320

    • Open Access
  • [Journal Article] Algebraic combinatorial optimization on the degree of determinants of noncommutative symbolic matrices2023

    • Author(s)
      Hiroshi Hirai, Yuni Iwamasa, Taihei Oki, Tasuku Soma
    • Journal Title

      arXiv

      Volume: -- Pages: 2310.15502

    • DOI

      10.48550/arXiv.2310.15502

    • Open Access
  • [Journal Article] Finding a maximum restricted t-matching via Boolean edge-CSP2023

    • Author(s)
      Yuni Iwamasa, Yusuke Kobayashi, Kenjiro Takazawa
    • Journal Title

      arXiv

      Volume: -- Pages: 2310.20245

    • DOI

      10.48550/arXiv.2310.20245

    • Open Access
  • [Journal Article] Minimum separator reconfiguration2023

    • Author(s)
      Guilherme C. M. Gomes, Clement Legrand-Duchesne, Reem Mahmoud, Amer E. Mouawad, Yoshio Okamoto, Vinicius F. dos Santos, Tom C. van der Zanden
    • Journal Title

      arXiv

      Volume: -- Pages: 2307.07782

    • DOI

      10.48550/arXiv.2307.07782

    • Open Access / Int'l Joint Research
  • [Journal Article] On connectedness of solutions to integer linear systems2023

    • Author(s)
      Takasugu Shigenobu, Naoyuki Kamiyama
    • Journal Title

      Proc. of 16th Annual International Conference on Combinatorial Optimization and Applications (COCOA 2023), Lecture Notes in Computer Science

      Volume: 14461 Pages: 421-433

    • DOI

      10.1007/978-3-031-49611-0_30

    • Peer Reviewed
  • [Journal Article] Hardness of finding combinatorial shortest paths on graph associahedra2023

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto
    • Journal Title

      Proc. of 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP 2023), Leibniz International Proceedings in Informatics

      Volume: 261 Pages: 82:1-82:17

    • DOI

      10.4230/LIPIcs.ICALP.2023.82

    • Peer Reviewed / Open Access
  • [Journal Article] Minimum separator reconfiguration2023

    • Author(s)
      Guilherme C. M. Gomes, Clement Legrand-Duchesne, Reem Mahmoud, Amer E. Mouawad, Yoshio Okamoto, Vinicius F. dos Santos, Tom C. van der Zanden
    • Journal Title

      Proc. of 18th International Symposium on Parameterized and Exact Computation (IPEC 2023), Leibniz International Proceedings in Informatics

      Volume: 285 Pages: 90:51:12

    • DOI

      10.4230/LIPIcs.IPEC.2023.9

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Independent set reconfiguration on directed graphs2022

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Yasuaki Kobayashi, Yu Nakahata, Yota Otachi, Masahiro Takahashi, Kunihiro Wasa
    • Journal Title

      Proc. of 47th International Symposium on Mathematical Foundations of Computer Science (MFCS 2022), Leibniz International Proceedings in Informatics

      Volume: 241 Pages: 58:1-58:15

    • DOI

      10.4230/LIPIcs.MFCS.2022.58

    • Peer Reviewed / Open Access
  • [Journal Article] An improved deterministic parameterized algorithm for cactus vertex deletion2022

    • Author(s)
      Yuuki Aoike, Tatsuya Gima, Tesshu Hanaka, Masashi Kiyomi, Yasuaki Kobayashi, Yusuke Kobayashi, Kazuhiro Kurita, Yota Otachi
    • Journal Title

      Theory of Computing Systems

      Volume: 66 Pages: 502-515

    • DOI

      10.1007/s00224-022-10076-x

    • Peer Reviewed
  • [Journal Article] A parameterized view to the robust recoverable base problem of matroids under structural uncertainty2022

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yoshio Okamoto
    • Journal Title

      Operations Research Letters

      Volume: 50 Pages: 370-375

    • DOI

      10.1016/j.orl.2022.05.001

    • Peer Reviewed / Open Access
  • [Journal Article] Weight balancing on boundaries2022

    • Author(s)
      Luis Barba, Otfried Cheong, Michael Gene Dobbins, Rudolf Fleischer, Akitoshi Kawamura, Matias Korman, Yoshio Okamoto, Janos Pach, Yuan Tang, Takeshi Tokuyama, Sander Verdonschot
    • Journal Title

      Journal of Computational Geometry

      Volume: 13 Pages: 1-12

    • DOI

      10.20382/jocg.v13i1a1

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reforming an envy-free matching2022

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      arXiv

      Volume: -- Pages: 2207.02641

    • DOI

      10.48550/arXiv.2207.02641

    • Open Access
  • [Journal Article] An even 2-factor in the line graph of a cubic graph2022

    • Author(s)
      SeungJae Eom, Kenta Ozeki
    • Journal Title

      Theory and Applications of Graphs

      Volume: 9 Pages: 7

    • DOI

      10.20429/tag.2022.090107

    • Peer Reviewed
  • [Journal Article] Algorithms for coloring reconfiguration under recolorability digraphs2022

    • Author(s)
      Soichiro Fujii, Yuni Iwamasa, Kei Kimura, Akira Suzuki
    • Journal Title

      Proc. of 33rd International Symposium on Algorithms and Computation (ISAAC 2022), Leibniz International Proceedings in Informatics

      Volume: 248 Pages: 4:1-4:19

    • DOI

      10.4230/LIPIcs.ISAAC.2022.4

    • Peer Reviewed / Open Access
  • [Journal Article] Rerouting planar curves and disjoint paths2022

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naonori Kakimura, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      arXiv

      Volume: -- Pages: 2210.11778

    • DOI

      10.48550/arXiv.2210.11778

    • Open Access
  • [Journal Article] Reconfiguration of colorings in triangulations of the sphere2022

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      arXiv

      Volume: -- Pages: 2210.17105

    • DOI

      10.48550/arXiv.2210.17105

    • Open Access
  • [Journal Article] Characterization of (m,n)-linked planar graphs2022

    • Author(s)
      Kengo Enami, Shun-ichi Maezawa
    • Journal Title

      Graphs and Combinatorics

      Volume: 38 Pages: 131

    • DOI

      10.1007/s00373-022-02537-4

    • Peer Reviewed
  • [Journal Article] Special case of Rota's basis conjecture on graphic matroids2022

    • Author(s)
      Shun-ichi Maezawa, Akiko Yazawa
    • Journal Title

      The Electronic Journal of Combinatorics

      Volume: 29 Pages: P3.63

    • DOI

      10.37236/10835

    • Peer Reviewed
  • [Journal Article] On reachable assignments under dichotomous preferences2022

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Journal Title

      Proc. of 24th International Conference on Principles and Practice of Multi-Agent Systems (PRIMA 2022), Lecture Notes in Computer Science

      Volume: 13753 Pages: 650-658

    • DOI

      10.1007/978-3-031-21203-1_43

    • Peer Reviewed
  • [Presentation] アルゴリズム的問題発見とアルゴリズム的問題解決2024

    • Author(s)
      岡本 吉央
    • Organizer
      第196回アルゴリズム研究発表会
    • Invited
  • [Presentation] グラフ最小カットに基づく多様度最大の安定マッチング集合を求めるアルゴリズム2024

    • Author(s)
      岩政 勇仁, 森平 隼矢
    • Organizer
      日本応用数理学会第20回研究部会連合発表会
  • [Presentation] マトロイドを表すBDD/ZDDについて2024

    • Author(s)
      江本 洸海, 岩政 勇仁, 湊 真一
    • Organizer
      電子情報通信学会2023年 総合大会 COMP-AFSA学生シンポジウム
  • [Presentation] 組合せ最適化におけるアルゴリズムの理論的な効率性2024

    • Author(s)
      小林佑輔
    • Organizer
      日本オペレーションズリサーチ学会春季研究発表会
    • Invited
  • [Presentation] タイを含む無羨望マッチングの遷移2024

    • Author(s)
      岩政 勇仁, 川原 純, 上田 結大
    • Organizer
      電子情報通信学会 コンピュテーション研究会
  • [Presentation] Kempe equivalence classes on 3-edge-colorings in cubic graphs2023

    • Author(s)
      Kenta Ozeki
    • Organizer
      Joint Mathematics Meetings
    • Int'l Joint Research
  • [Presentation] 非負k-劣モジュラ緩和について2023

    • Author(s)
      内田 康太郎, 岩政 勇仁
    • Organizer
      2022年度 冬のLAシンポジウム
  • [Presentation] 組合せ遷移におけるトポロジーの視点2023

    • Author(s)
      野崎雄太
    • Organizer
      電子情報通信学会コンピュテーション研究会
    • Invited
  • [Presentation] 整数双劣モジュラ多面体の整数点集合の特徴づけ2023

    • Author(s)
      岩政 勇仁
    • Organizer
      日本応用数理学会 第19回研究部会連合発表会
  • [Presentation] Matchings in bipartite graphs with stochastic arrivals and departures2023

    • Author(s)
      Naonori Kakimura, Donghao Zhu
    • Organizer
      12th Japanese-Hungarian Symposium on Discrete Mathematics and Its Applications (JH 2023)
    • Int'l Joint Research / Invited
  • [Presentation] A combinatorial algorithm for computing the entire sequence of the maximum degree of minors of a generic partitioned polynomial matrix with 2x2 submatrices2023

    • Author(s)
      Yuni Iwamasa
    • Organizer
      12th Japanese-Hungarian Symposium on Discrete Mathematics and Its Applications (JH 2023)
    • Int'l Joint Research
  • [Presentation] A combinatorial algorithm for computing the entire sequence of the maximum degree of minors of a generic partitioned polynomial matrix with 2x2 submatrices2023

    • Author(s)
      Yuni Iwamasa
    • Organizer
      SIAM Conference on Optimization (OP23)
    • Int'l Joint Research
  • [Presentation] Reconfiguration of colorings in triangulations of the sphere2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Organizer
      39th International Symposium on Computational Geometry (SoCG 2023)
    • Int'l Joint Research
  • [Presentation] 時間制約付き有向木の遷移2023

    • Author(s)
      伊藤 健洋, 岩政 勇仁, 神山 直之, 小林 靖明, 小林 佑輔, 前澤 俊一, 鈴木 顕
    • Organizer
      2023年度夏のLAシンポジウム
  • [Presentation] 彩色遷移可能性が多項式時間で判定できるマルチツリー遷移制約について2023

    • Author(s)
      岩政 勇仁, 浦川 樹
    • Organizer
      2023年度 夏のLAシンポジウム
  • [Presentation] Rerouting planar curves and disjoint paths2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naonori Kakimura, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Organizer
      50th EATCS International Colloquium on Automata, Languages and Programming (ICALP 2023)
    • Int'l Joint Research
  • [Presentation] Three open problems on combinatorial reconfiguration2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto, Kenta Ozeki
    • Organizer
      3rd Workshop on Combinatorial Reconfiguration, affiliated with ICALP 2023
    • Int'l Joint Research
  • [Presentation] Algorithmic theory of qubit routing2023

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yoshio Okamoto
    • Organizer
      3rd Workshop on Combinatorial Reconfiguration, affiliated with ICALP 2023
    • Int'l Joint Research
  • [Presentation] Hardness of finding combinatorial shortest paths on graph associahedra2023

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Shun-ichi Maezawa, Yuta Nozaki, Yoshio Okamoto
    • Organizer
      50th EATCS International Colloquium on Automata, Languages and Programming (ICALP 2023)
    • Int'l Joint Research
  • [Presentation] Reconfiguration of time-respecting arborescences2023

    • Author(s)
      Takehiro Ito, Yuni Iwamasa, Naoyuki Kamiyama, Yasuaki Kobayashi, Yusuke Kobayashi, Shun-ichi Maezawa, Akira Suzuki
    • Organizer
      18th Algorithms and Data Structures Symposium (WADS 2023)
    • Int'l Joint Research
  • [Presentation] Spanning trees with bounded number of leaves in K_{1,p}-free graphs2023

    • Author(s)
      Kenta Ozeki
    • Organizer
      10th International Congress on Industrial and Applied Mathematics (ICIAM 2023)
    • Int'l Joint Research / Invited
  • [Presentation] Minimum separator reconfiguration2023

    • Author(s)
      Guilherme C. M. Gomes, Clement Legrand-Duchesne, Reem Mahmoud, Amer E. Mouawad, Yoshio Okamoto, Vinicius F. dos Santos, Tom C. van der Zanden
    • Organizer
      The 18th International Symposium on Parameterized and Exact Computation (IPEC 2023)
    • Int'l Joint Research
  • [Presentation] Spanning trees in star-free graphs2023

    • Author(s)
      Kenta Ozeki
    • Organizer
      25th Indonesia-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (IJCDCG^3 2023)
    • Int'l Joint Research / Invited
  • [Presentation] ILS解グラフの連結性の行列のサイズによる分類2023

    • Author(s)
      重信 賢直, 神山 直之
    • Organizer
      日本オペレーションズ・リサーチ学会九州支部 九州地区におけるOR若手研究交流会
  • [Presentation] Spanning trees in connected K1,p-free graphs2023

    • Author(s)
      Kenta Ozeki
    • Organizer
      35th Workshop on Topological Graph Theory (TGT35)
    • Int'l Joint Research
  • [Presentation] 制限付きt-マッチング問題に対する制約充足的アプローチ2023

    • Author(s)
      岩政 勇仁, 小林 佑輔, 高澤 兼二郎
    • Organizer
      第195回アルゴリズム研究発表会
  • [Presentation] 極大外平面グラフの奇彩色2023

    • Author(s)
      大迫 翔, 小関健太
    • Organizer
      2023年度応用数学合同研究集会
  • [Presentation] Kempe equivalence of cubic plane graphs2022

    • Author(s)
      小関 健太
    • Organizer
      Japanese Conference on Combinatorics and its Applications 2022 離散数学とその応用研究集会2022
  • [Presentation] Angular Resolution in Graph Drawing2022

    • Author(s)
      Yoshio Okamoto
    • Organizer
      GD 2022 PhD School
    • Int'l Joint Research / Invited
  • [Presentation] 球面の三角形分割の彩色遷移2022

    • Author(s)
      伊藤 健洋,岩政 勇仁,小林 佑輔,前澤 俊一,野崎 雄太,岡本 吉央,小関 健太
    • Organizer
      日本オペレーションズ・リサーチ学会 2022年秋季研究発表会
  • [Presentation] ストリーミングデータにおけるアイテム頻出数を求める省領域乱択アルゴリズム2022

    • Author(s)
      垣村尚徳,新田陸
    • Organizer
      電子情報通信学会コンピュテーション研究会
  • [Presentation] ILS における解グラフの連結性に関する研究2022

    • Author(s)
      重信 賢直, 神山 直之
    • Organizer
      日本オペレーションズ・リサーチ学会九州支部 九州地区におけるOR若手研究交流会
  • [Presentation] On reachable assignments under dichotomous preferences2022

    • Author(s)
      Takehiro Ito, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yuta Nozaki, Yoshio Okamoto, and Kenta Ozeki
    • Organizer
      24th International Conference on Principles and Practice of Multi-Agent Systems (PRIMA 2022)
    • Int'l Joint Research
  • [Presentation] Reconfiguration and Enumeration of Optimal Cyclic Ladder Lotteries2022

    • Author(s)
      Yuta Nozaki, Kunihiro Wasa, Katsuhisa Yamanaka
    • Organizer
      電子情報通信学会コンピュテーション研究会
  • [Presentation] 球面の三角形分割の彩色遷移2022

    • Author(s)
      伊藤 健洋,岩政 勇仁,小林 佑輔,前澤 俊一,野崎 雄太,岡本 吉央,小関 健太
    • Organizer
      2022年度応用数学合同研究集会
  • [Presentation] Algorithms for coloring reconfiguration under recolorability digraphs2022

    • Author(s)
      Soichiro Fujii, Yuni Iwamasa, Kei Kimura, and Akira Suzuki
    • Organizer
      The 33rd International Symposium on Algorithms and Computation (ISAAC 2022)
    • Int'l Joint Research
  • [Book] ガイダンス 離散数学 基礎から発展的な考え方へ2023

    • Author(s)
      中本 敦浩, 小関 健太
    • Total Pages
      224
    • Publisher
      サイエンス社
    • ISBN
      978-4-7819-1569-2
  • [Remarks] 組合せ遷移@学術変革領域研究(B) HOME

    • URL

      https://core.dais.is.tohoku.ac.jp/

  • [Funded Workshop] 35th Workshop on Topological Graph Theory (TGT35)2023

  • [Funded Workshop] Workshop "Polytope Diameter and Related Topics"2022

  • [Funded Workshop] Workshop "Combinatorial Reconfiguration and Fixed-Parameter Tractability"2022

URL: 

Published: 2024-12-25  

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