Koichi Taniguchi

collaborators

2 papers

math.AP2023

Lifespan estimates for semilinear damped wave equation in a two-dimensional exterior domain

Masahiro Ikeda, Motohiro Sobajima, Koichi Taniguchi +1

Lifespan estimates for semilinear damped wave equations of the form $\partial_{t}^{2} u - Δ u + \partial_{t} u = ∣ u ∣^{p}$ in a two dimensional exterior domain endowed with the Dirichlet boundary co…

math.FA2023

Boundedness of composition operators on higher order Besov spaces in one dimension

Masahiro Ikeda, Isao Ishikawa, Koichi Taniguchi

This paper aims to characterize boundedness of composition operators on Besov spaces $B_{p, q}^{s}$ of higher order derivatives $s > 1 + 1/ p$ on the one-dimensional Euclidean space. In co…