Hiroshima University Topology-Geometry Seminar Information

Topology-Geometry Seminar is held on every Tuesday.
The talks are given mainly in Japanese.
Topology-Geometry Seminar 2010 starts on April 20, 2010.
Japanese version is here.

Speakers and Title of Talks

• 2/8 : 13:00--13:45
  Noriyuki Masukane (Hiroshima University)
  Symmetry groups of knots and outer-automorphism groups of knot groups
  Tsutomu Naoki (Hiroshima University)
  Torus bundles and ideal class semi-groups
  Tomoyuki Nakamoto (Hiroshima University)
  Geometry of elliptic Montesinos links
  
• 2/8 : 14:00--14:45
  Takashi Hyojo (Hiroshima University)
  Classification of low dimensional representations of sl(2,C)-degenerate Lie algebras
  Tadashi Takahashi (Hiroshima University)
  Homogeneous surfaces in the three-dimensional Heisenberg group
  Hiroshi Utsunomiya (Hiroshima University)
  Principal curvatures and sectional curvatures of solvmanifolds obtained from gradations of special linear Lie algebras
  
• 2/8 : 15:00--16:40
  Sosuke Ashihara (Hiroshima University)
  A method to calculate the biquandles of surface links from their ch-diagrams
  Takanori Imabeppu (Hiroshima University)
  On checkerboard colorability of virtual knots with up to four real crossings
  Noriyuki Takasaki (Hiroshima University)
  Characteristic classes of complex Grassmann manifolds
  Takahiro Hashinaga (Hiroshima University)
  Three-dimensional solsolitons and minimality of the corresponding submanifolds
  
• 2/1 : SHIMOKAWA, Koya (Saitama University)
  Tangle sums and factorization of A-polynomials (Joint work with Masaharu Ishikawa and Thomas W. Mattman)
• 1/25 : KODA, Yuya (Tohoku University)
  Automorphisms of the 3-sphere that preserve knotted handlebodies of genus two strips
• 1/18 : Kosuke Naokawa (Osaka University)
  Singularities of the asymptotic completion of developable Möbius strips
• 12/21 : Yasuyuki Nagatomo (Kyushu University)
  Vector bundles, isoparametric functions and Radon transforms on symmetric spaces
• 12/17 : Daisuke Nakajo (Kyushu University)
  Applications of a representation formula for surfaces in affine differential geometry
• 12/07 : Kenta Hayano (Osaka University)
  On genus-1 simplified broken Lefschetz fibrations
• 11/30 : Tamas Kalman (Tokyo Institute of Technology)
  Heegaard Floer homology and the Homfly polynomial
• 11/9 : Takumi Yamada (Shimane University)
  Holomorphic vector fields on compact pseudo-K\"ahler manifolds
• 11/2 : Yoshiro Yaguchi (Hiroshima University)
  An infinite type invariant of Hurwitz equivalence on braid systems of length 4 and its applications to surface braids
• 10/26 : HOKUTO MORISHIMA (Osaka University)
  On ring theoretic invariants of quasi-isometry
• 10/19 : Takayuki Moriyama (Kyoto University)
  The moduli space of transverse Calabi-Yau structures on foliated manifolds
• 09/07 : KAWAUCHI, Akio (Osaka City University)
  Amphicheirality of a link and Alexander invariants
• 07/20 : JONG, In Dae (OCAMI)
  On exceptional surgeries on Montesinos knots (joint works with Kazuhiro Ichihara and Shigeru Mizushima)
• 07/13 : TAKATA Toshie (Kyushu University)
  A relation between the HOMFLY and Kauffman polynomials for 2-component torus links
• 07/06 : Daisuke Tarama (Kyoto University)
  Complex Algebraic Geometry of Free Rigid Bodies
• 06/29 : MATSUDA Hiroshi (Hiroshima University)
  An extension of Burau representation, and a deformation of Alexander polynomial
• 06/15 : Hironao Kato (Hiroshima University)
  Geometric structures associated with prehomogeneous vector spaces
• 06/08 : Jang, Yeonhee (Hiroshima University)
  Arborescent links with 3-bridge presentations
• 06/01 : Yusuke Kuno (Hiroshima University)
  The logarithms of Dehn twists
• 05/18 : Shinobu Fujii (Hiroshima University / OCAMI)
  On moment maps for the isotropy representations of Hermitian symmetric spaces and homogenous isoparametric hypersurfaces in spheres
• 05/11 : Kazuhiro Sakuma (Kinki University)
  Topology of fold maps over manifolds
• 04/27 : Kanako Oshiro (Hiroshima University)
  Oriented link invariants using symmetric quandles
• 04/20 : Kazuhiro Shibuya (Hiroshima University)
  Second order type-changing equations for a scalar function on a plane

The seminars held in the past (academic) years

• '97
• '98
• '99
• 2000
• 2001
• 2002
• 2003
• 2004
• 2005
• 2006
• 2007
• 2008
• 2009

Topology group