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J-GLOBAL ID：201601010212292400   Update date: Dec. 25, 2025

Oguni Shin-ichi

Oguni Shin-ichi
Affiliation and department：
Ehime University Graduate School of Science and Engineering

About Ehime University Graduate School of Science and Engineering


Job title： Professor
Research theme for competitive and other funds  (9)：
  • 2025 - 2030 粗Baum-Connes予想と粗幾何学に関わる非正曲率性・負曲率性についての研究
  • 2020 - 2025 粗Baum-Connes予想に関わる粗幾何学の新展開
  • 2016 - 2020 粗Baum-Connes予想に関わる粗幾何学
  • 2013 - 2017 Moduli theory of non linear elliptic operators over non compact manifolds
  • 2012 - 2016 離散群の相対的双曲構造と収束群作用
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Papers (18)：
  • Motoko Kato, Shin-ichi Oguni. Acylindrical hyperbolicity of Artin groups associated with graphs that are not cones. Groups, Geometry, and Dynamics. 2024. 18. 4. 1291-1316
  • Tomohiro Fukaya, Shin-ichi Oguni, Takamitsu Yamauchi. Coarse compactifications and controlled products. Journal of Topology and Analysis. 2022. 14. 04. 875-900
  • MOTOKO KATO, SHIN-ICHI OGUNI. ACYLINDRICAL HYPERBOLICITY OF ARTIN-TITS GROUPS ASSOCIATED WITH TRIANGLE-FREE GRAPHS AND CONES OVER SQUARE-FREE BIPARTITE GRAPHS. Glasgow Mathematical Journal. 2022. 64. 1. 51-64
  • Tomohiro Fukaya, Shin-ichi Oguni. A coarse Cartan-Hadamard theorem with application to the coarse Baum-Connes conjecture. Journal of Topology and Analysis. 2020. 12. 03. 857-895
  • Yoshifumi Matsuda, Shin-ichi Oguni, Saeko Yamagata. On relative hyperbolicity for a group and relative quasiconvexity for a subgroup. Tokyo Journal of Mathematics. 2019. 42. 83-112
ｍore...
MISC (4)：
  • Motoko Kato, Shin-ichi Oguni. Acylindrical hyperbolicity and the centers of Artin groups that are not free of infinity. preprint. 2024
  • Yoshifumi Matsuda, Shin-ichi Oguni, Saeko Yamagata. Blowing up and down compacta with geometrically finite convergence actions of a group. 2012
  • Yoshifumi Matsuda, Shin-ichi Oguni, Saeko Yamagata. Hyperbolically embedded virtually free subgroups of relatively hyperbolic groups. 2011
  • Shin-ichi Oguni. L2-invariants of groups under coarse equivalence and of groupoids under Morita equivalence. preprint. 2010
Lectures and oral presentations  (29)：
  • 無限型のアルティン群の非シリンダー的双曲性
    (東京理科大学数理科学科談話会/東京理科大学幾何学セミナー 2025)
  • 群とグラフの大尺度幾何学とその周辺
    (エクスパンダーグラフにまつわる数理科学と応用 2025)
  • アルティン群の非シリンダー的双曲性
    (第71回 幾何学シンポジウム 2024)
  • 完全グラフでない定義グラフに付随したアルティン群の非シリンダー的双曲性
    (2024 日本数学会 秋季総合分科会 2024)
  • 無限型のアルティン群の非シリンダー的双曲性について
    (RIMS共同研究 : 変換群論の新潮流 2022)
ｍore...
Association Membership(s) (1)：
THE MATHEMATICAL SOCIETY OF JAPAN
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