Hiroshima University TopologyGeometry Seminar Information
TopologyGeometry Seminar is held on every Tuesday.
The talks are given mainly in Japanese.
TopologyGeometry Seminar 2010 starts on April 20, 2010.
Japanese
version is here.
Speakers and Title of Talks

2/8 : 13:0013:45
Noriyuki Masukane (Hiroshima University)
Symmetry groups of knots and outerautomorphism groups of knot groups
Tsutomu Naoki (Hiroshima University)
Torus bundles and ideal class semigroups
Tomoyuki Nakamoto (Hiroshima University)
Geometry of elliptic Montesinos links

2/8 : 14:0014:45
Takashi Hyojo (Hiroshima University)
Classification of low dimensional representations of sl(2,C)degenerate
Lie algebras
Tadashi Takahashi (Hiroshima University)
Homogeneous surfaces in the threedimensional Heisenberg group
Hiroshi Utsunomiya (Hiroshima University)
Principal curvatures and sectional curvatures of solvmanifolds obtained
from gradations of special linear Lie algebras

2/8 : 15:0016:40
Sosuke Ashihara (Hiroshima University)
A method to calculate the biquandles of surface links from their chdiagrams
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)
Threedimensional solsolitons and minimality of the corresponding
submanifolds

2/1 : SHIMOKAWA, Koya (Saitama University)
Tangle sums and factorization of Apolynomials
(Joint work with Masaharu Ishikawa and Thomas W. Mattman)

1/25 : KODA, Yuya (Tohoku University)
Automorphisms of the 3sphere 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 genus1 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 pseudoK\"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 quasiisometry

10/19 : Takayuki Moriyama (Kyoto University)
The moduli space of transverse CalabiYau 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 2component 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 3bridge 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 typechanging equations for a scalar function on a plane
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
Hiroshi Matsuda email :
matsuda@math.sci.hiroshimau.ac.jp
Kazuhiro Shibuya email:
shibuya@hiroshimau.ac.jp