I mainly study the geometry of quaternion manifolds and emphasis that this is not only a new area, but also relates to the classical geometry including the spin structure.

Keyword	Higher dimensional Gauge Theory, Harmonic maps, Submanifold Theory, Isoparametric functions keyword : vector bundles, Anti-Self-Dual connections, Moduli spaces, Harmonic maps, Grassmann manifolds
Division	Mathematics: Visiting Professor (Meiji University)