Existence of radially symmetric stationary solutions for the compressible Navier-Stokes equation (Mathematical Analysis of Viscous Incompressible Fluid)

Joint work with Prof. Akitaka Matsumura, Osaka universit

Asymptotic behavior toward radially symmetric stationary solutions of the compressible Navier-Stokes equation (Nonlinear and Random Waves)

This research is a joint work with Professor Shinya Nishibata, Souhei Sugizaki of Tokyo institute of technology and Akitaka Matsumura of Osaka university. The present talk is concerned with the existence and asymptotic behaviors of radially symmetric stationary solutions for the compressible Navier-Stokes equation, describing the motion of viscous barotropic gas without external forces, where boundary and far field data are prescribed on the exterior domain in ℝ[n], n ≥ 3. We clear that for both inflow and outflow problems, there exist non trivial stationary solution, and for outflow problem we show that the stationary wave are asymptotic stable in a suitably small neighborhood of the initial data. Furthermore, detailed decay rate of the stationary solutions are derived

Asymptotic behavior of solutions for damped wave equations with non-convex convection term on the half line

We study the asymptotic stability of nonlinear waves for damped wave equations with a convection term on the half line. In the case where the convection term satisfies the convex and sub-characteristic conditions, it is known by the work of Ueda [7] and Ueda-Nakamura-Kawashima [10] that the solution tends toward a stationary solution. In this paper, we prove that even for a quite wide class of the convection term, such a linear superposition of the stationary solution and the rarefaction wave is asymptotically stable. Moreover, in the case where the solution tends to the non-degenerate stationary wave, we derive that the time convergence rate is polynomially (resp. exponentially) fast if the initial perturbation decays polynomially (resp. exponentially) as x → ∞. Our proofs are based on a technical L 2 weighted energy method

A study of difficulties experienced by childcare workers in informing parents of their children\u27s need for special care: through focus group interviews

13301甲第4383号博士(保健学)金沢大学博士論文本文Full 以下に掲載：Journal of the Tsuruma Health Science Society 39(2) pp.75-83 2015. 金沢大学つるま保健学会. 共著者：橋本 逸子・木村 留美子・津田 朗

A study of difficulties experienced by childcare workers in informing parents of their children\u27s need for special care: through focus group interviews

13301甲第4383号博士(保健学)金沢大学博士論文要旨Abstract 以下に掲載：Journal of the Tsuruma Health Science Society 39(2) pp.75-83 2015. 金沢大学つるま保健学会. 共著者：橋本 逸子・木村 留美子・津田 朗