Hiroshima University TopologyGeometry Seminar Information
TopologyGeometry Seminar is held on every Tuesday.
The talks are given mainly in Japanese.
TopologyGeometry 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 threeholed sphere

2/5 :Yuichiro Oi (Hiroshima University)
Poincare's polyhedron theorem for 2, 3dimensional 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 4manifolds
Naoki Sakata (Hiroshima University)
Canonical decompositions of hyperbolic fibered 2bridge links
Mikio Furokawa (Hiroshima University)
Ford domains of quasifuchsian oncepunctured Klein bottle groups
Yuichiro Taketomi (Hiroshima University)
On the nonexistence of leftinvariant 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 4symmetric 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 secondorder
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 InoueKabaya 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 lowdimensional conemanifolds
Yuichiro Honke(Hiroshima University)
Quasi fuchsian once punctured torus group obtained by minimal genus Seifert surface of twobridge knot
Yuta Hase (Hiroshima University)
Construction of closed 4manifolds 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 oncepunctured Klein bottle
Yuichiro Taketomi (Hiroshima University)
On nonexistence of leftinvariant 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 Klines in the Khyperbolic
(projective) spaces

6/5 :Masakazu Teragaito (Hiroshima University)
Leftorderability and exceptional Dehn surgery on twist knots

5/29 :Tetsuya Abe (Kyoto University)
Annulus twist, diffeomorphic 4manifolds, 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 halftwisted 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
Topology
group
Makoto Sakuma email :
sakuma@math.sci.hiroshimau.ac.jp
Hiroshi Tamaru email :
tamaru@math.sci.hiroshimau.ac.jp
Kazuhiro Shibuya email:
shibuya@hiroshimau.ac.jp
Kouichi Yasui email :
kyasui@hiroshimau.ac.jp