Hiroshima University Topology-Geometry Seminar Information

Topology-Geometry Seminar is held on every Tuesday.
The talks are given mainly in Japanese.
Topology-Geometry Seminar 2012 starts on April 24, 2012.
Japanese version is here.

Speakers and Title of Talks

• 3/5 :Benjamin Burton (The University of Queensland)
  Computing which knots are large
• 2/19 :Toshihiro Nakanishi (Shimane University)
  An infinite product associated to a hyperbolic three-holed sphere
• 2/5 :Yuichiro Oi (Hiroshima University)
  Poincare's polyhedron theorem for 2, 3-dimensional cone manifolds
  Yuichiro Honke(Hiroshima University)
  Convex cores of quotient hyperbolic manifolds of certain quasifuchsian punctured torus groups
  Yuta Hase (Hiroshima University)
  On smooth structures of doubles of 4-manifolds
  Naoki Sakata (Hiroshima University)
  Canonical decompositions of hyperbolic fibered 2-bridge links
  Mikio Furokawa (Hiroshima University)
  Ford domains of quasi-fuchsian once-punctured Klein bottle groups
  Yuichiro Taketomi (Hiroshima University)
  On the nonexistence of left-invariant Ricci solitons --- a conjecture and examples
  
• 1/29 :Asuka Takatsu (Nagoya University)
  Isoperimetric profile of radial probability measure
• 1/22 :Atsumu Sasaki (Department of Mathematics, Tokai University)
  A generalized Cartan decomposition for spherical 4-symmetric spaces
• 12/18 :Ryokichi Tanaka (Tohoku University)
  Random walks on groups of prescribed volume grouwth
• 12/11 :Takahiro Noda (Nagoya University / OCAMI)
  Contact geometry associated with second-order overdetermined systems
• 12/4 :Cheng Zhiyun (Beijing Normal University)
  Region crossing change on link diagrams
• 11/27 :Tetsuji Taniguchi (Matsue College of Technology)
  Line graphs and its eigenvalue problem: the relationship between root systems and graphs
• 11/20 :Reiko Shinjo (Waseda University)
  On the inclusive relation of three properties of knot diagrams
• 10/30 :Takefumi Nosaka (Kyushu University)
  On third homologies of quandles and of groups via Inoue-Kabaya map
• 10/23 :Takahiro Hashinaga (Hiroshima University)
  Homogeneous Ricci soliton hypersurfaces in the complex hyperbolic spaces(1)
  Akira Kubo (Hiroshima University)
  Homogeneous Ricci soliton hypersurfaces in the complex hyperbolic spaces(2)
• 10/16 :Chad Musick (Nagoya University)
  Recognizing Trivial Links in Polynomial Time
• 9/25 :Nikolay Abrosimov (Sobolev Institute of Mathematics, Novosibirsk)
  Volumes of polyhedra in spaces of constant curvature
• 8/21 :Brian Bowditch (Univ. Warwick)
  Coarse median groups and spaces
• 7/31 :Yuichiro Oi (Hiroshima University)
  Extension of Poincare's polyhedron theorem and low-dimensional cone-manifolds
  Yuichiro Honke(Hiroshima University)
  Quasi fuchsian once punctured torus group obtained by minimal genus Seifert surface of two-bridge knot
  Yuta Hase (Hiroshima University)
  Construction of closed 4-manifolds by Andrews Curtis non trivial presentation
  Naoki Sakata (Hiroshima University)
  A canonical decomposition of hyperbolic two bridge knots
  Mikio Furokawa (Hiroshima University)
  Hyperbolic structures corresponding to PSL(2,C)-representations for the fundamental group of once-punctured Klein bottle
  Yuichiro Taketomi (Hiroshima University)
  On nonexistence of left-invariant Ricci solitons
  Noriyuki Takasaki (Hiroshima University)
  Projective structures and secondary characteristic classes
• 7/17 :Naoyuki Monden (Kyoto University)
  On geography problem of Lefschetz fibrations
• 7/10 :Yo'av Rieck (University of Arkansas)
  The link volume and cosmetic surgery (joint work with Yasushi Yamashita)
• 6/26 :Greg McShane (Tokyo Institute of Technology)
  Orthospectra and identities
• 6/19 :Hisayoshi Muroya (Osaka City University)
  On $n$-noids of genus one
• 6/12 :Katsuhiro Shiohama (Fukuoka University)
  Complete real hypersurfaces and the pencil of K-lines in the K-hyperbolic (projective) spaces
• 6/5 :Masakazu Teragaito (Hiroshima University)
  Left-orderability and exceptional Dehn surgery on twist knots
• 5/29 :Tetsuya Abe (Kyoto University)
  Annulus twist, diffeomorphic 4-manifolds, and slice knots
• 5/22 :Kanako Oshiro (Japan Women's University)
  On linear colorings for knots
• 5/15 :Akira Kubo (Hiroshima University)
  On geometry of $S_\Phi$-orbits in symmetric spaces of noncompact type
• 5/8 :Ayaka Shimizu (Hiroshima University)
  The half-twisted splice on reduced knot projections
• 5/1 :Toshio Saito (Joetsu University of Education)
  Meridional destabilizing number of knots
• 4/24 :Seiichi Kamada (Hiroshima University)
  Observation of branched coverings and braids via charts

The seminars held in the past (academic) years

• '97
• '98
• '99
• 2000
• 2001
• 2002
• 2003
• 2004
• 2005
• 2006
• 2007
• 2008
• 2009
• 2010
• 2011

Topology group