Division of Joint Research of
Geometry and Natural Science

Research Institute for Science and Technology, Tokyo University of Science

Greeting

From the Division Manager

In the pure mathmatics, there are three research fields of the Algebra, the Analysis and the Geometry mainly. In the geometry, there are three fields of the differential geometry, the topology and the Algebraic Geometry.

The differential Geometry is the field researching the space (which is called a manifold) where can treat the continuity and the differentiabiliy of various geometric quanttities and researching the properties of the figures in the space which are invariant under some Lie group action (on the space). The topology is the field researching the space (which is called a topological space) where can treat only the continuity of various quantities and researching the properties of the figures in the space which are invariant under continuous deformations. The algebraic geometry is the field researching the properties of the figures given as the common zero-point set of some polynomials. The purpose of this division of research is to construct the comprehensive geometric theory of the natural science (in wide sense) of the quantum mechanics, the condense matter theory, molecular biology, the grain boundary structure theory and composite materials mechanics, and feedback to each of the above fields of the natural science. This division was started from April 1st in 2025 for the above purpose.

Professor Naoyuki Koike (Director of DGNS)

Research organisation

Organisation

The division brings together six mathematical fields and four fields of the natural sciences. Hover a theme in the legend to highlight its links.

Theme 1Theme 2Theme 3Theme 4Links among the natural sciences
研究組織図MathematicsNatural scienceDifferential geometrySymmetric spaces, geometric Lie group theory, geometric gauge theoryN. Koike, M. Tanaka, K. Baba, T. Fujii, N. FujharaDifferential geometryDiscrete harmonic maps, geometric flowsN. Koike, K. Baba, T. Kajigaya, T. Fujii, N. FujiharaTopologyMapping class groups of surfaces, knot theory, 3-manifoldsS. Hirose, N. Oyamaguchi, K. Shimokawa, N. KimuraComplex and algebraic geometryComplex symplectic geometry, stability of polarised manifolds, automorphisms of algebraic surfacesD. Yamakawa, Y. Nitta, H. OhashiMathematical physicsQuantum field theory, noncommutative gauge theoryA. SakoMathematical analysisNonlinear PDEs, geometric measure theory, models of grain boundary motionM. MizunoParticle physics and quantum mechanicsQuantum many-body theory, particle physicsT. Nikuni, K. SuzukiInorganic and physical chemistryControl of crystal structures by self-assembly, nano-micro scienceM. Tadokoro, K. Otsubo, T. TsukamotoMaterials and mechanicsComposite materials mechanics, grain boundary structureS. Ogihara, A. Takahashi, K. InoueMolecular biologyLife phenomena related to DNA and RNA basesM. Sakurai
Mathematics side
Differential geometry
Symmetric space theory・Geometric Lie group theory・Geometric gauge theory
Naoyuki Koike, Makiko Tanaka, Kurando Baba, Tomoki Fujii, Naotoshi Fujihara
Differential geometry
Discrete harmonic map theory・Geometric flow
Naoyuki Koike, Kurando Baba, Toru Kajigaya, Tomoki Fujii, Naotoshi Fujihara
Topology
Mapping class group theory of surface・Konot theory・3-dimensional manifold theory
Susumu Hirose, Natsumi Oyamaguchi, Koya Shimokawa, Naoki Kimura
Complex geometry・Algebraic geometry
Complex symplectic geometry・Stability theory of polarized manifold・Automorphism theory of algebraic surface
Daisuke Yamakawa, Yasufumi Nitta, Hisanori Ohashi
Mathematical physics
Quantum field theory・Non-commutative gauge theory
Akifumi Sako
Mathematical analysis
Non-linear partial differential equation・Geometric measure theory・Mathematical model of grain boundary
Masashi Mizuno
Natural science side
Elementary particle theory・Quantum mechanics
Quantum many-body theory・Elementary particle theory
Tetsuro Nikuni, Katsuhiko Suzuki
Inorganic chemistry・Physical chemistry
Crystal structure control theory by self-organization・Nano-micro science
Makoto Tadokoro, Kazuya Otsubo, Takamasa Tsukamoto
Mechnical materials・Mechanics of materials・Metallic material property
Composite material mechanics・Grain boundary structure
Shinji Ogihara, Akiyuki Takahashi, Kazutoshi Inoue
Molecular biology
Phenomonological biology related to DNA・RNA base
Masayuki Sakurai
See the research themes in detail

Research Themes

Four Groups
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