# TSUTAYA, Kimitoshi:Associate Professor,Analysis

- Keyword(s):
- Nonlinear wave equations, Nonlinear Klein-Gordon equations, Cauchy problem, scattering theory
- Research Interest:
- Partial Differential Equations
- Research Activities:
- I study nonlinear wave equations appearing relativistic quantum mechanics and gauge theory by functional analysis. In particular, I am interested in the Cauchy problem and scattering theory of nonlinear Klein-Gordon equations, nonlinear Dirac equations, Maxwell's equations and Yang-Mills' equations. I work on problems on local and global well-posedness, asymptotic behavior, regularity and singularity of solutions. My recent research is mainly about systems of the equations describing interactions of fields.