[ 論文 | 講演 | 研究集会 ]

Preprints / In press

  • Takahiro Hashinaga, Akira Kubo, Yuichiro Taketomi, Hiroshi Tamaru :
    A Lie theoretic interpretation of realizations of some contact metric manifolds. [ Google scholar ]
  • Akira Kubo, Mika Nagashiki, Takayuki Okuda, Hiroshi Tamaru :
    A commutativity condition for subsets in quandles --- a generalization of antipodal subsets. [ Google scholar ]

Papers / Proceedings (refereed)

  1. Jong Taek Cho, Takahiro Hashinaga, Akira Kubo, Yuichiro Taketomi, Hiroshi Tamaru :
    Realizations of some contact metric manifolds as Ricci soliton real hypersurfaces,
    J. Geom. Phys. 123 (2018), 221--234. [ DOI | arXiv:1702.07256 | Google scholar ]
  2. Jong Taek Cho, Takahiro Hashinaga, Akira Kubo, Yuichiro Taketomi, Hiroshi Tamaru :
    The solvable models of noncompact real two-plane Grassmannians and some applications.
    Hermitian-Grassmannian Submanifolds, 311--321, Springer Proc. Math. Stat., 203, Springer, Singapore, 2017.
  3. Akira Kubo :
    The solvable models of noncompact real Grassmannians.
    Challenging Researches in Economic Sciences, 125--134, Series of Monographs of Contemporary Social Systems Solutions, 8, Kyushu University Press, 2017.
  4. Takahiro Hashinaga, Akira Kubo, Hiroshi Tamaru :
    Homogeneous Ricci soliton hypersurfaces in the complex hyperbolic spaces.
    Tohoku Math. J. (2) 68 (2016), no.4, 559--568. [ DOI | arXiv:1305.6128 | Google scholar ]
  5. Akira Kubo, Kensuke Onda, Yuichiro Taketomi, Hiroshi Tamaru :
    On the moduli spaces of left-invariant pseudo-Riemannian metrics on Lie groups.
    Hiroshima Math. J. 46 (2016), no.3, 357--374. [ Project Euclid | arXiv:1509.08336 | Google scholar ]
  6. Akira Kubo :
    Geometry of homogeneous polar foliations of complex hyperbolic spaces.
    Hiroshima Math. J. 45 (2015), no.1, 109--123. [ Project Euclid | Google scholar ]
  7. Takuya Fujimaru, Akira Kubo, Hiroshi Tamaru :
    On totally geodesic surfaces in symmetric spaces of type AI.
    Real and Complex Submanifolds, 211--227, Springer Proc. Math. Stat., 106, Springer, Tokyo, 2014. [ DOI | Google scholar ]
  8. Takahiro Hashinaga, Akira Kubo, Hiroshi Tamaru :
    Some topics of homogeneous submanifolds in complex hyperbolic spaces.
    Differential geometry of submanifolds and its related topics, 230--244, World Sci. Publ., Hackensack, NJ, 2014. [ DOI | Google scholar ]
  9. Akira Kubo, Hiroshi Tamaru :
    A sufficient condition for congruency of orbits of Lie groups and some applications.
    Geom. Dedicata 167 (2013), no.1, 233--238. [ DOI | arXiv:1212.3893 | Google scholar ]

Proceedings (not refereed)