(with Masayuki Hayashi) Instability of algebraic standing waves for nonlinear Schrödinger equations with double power nonlinearities, Transactions of the American Mathematical Society 374 (2021), no.2, 1421–1447.
Uniqueness and nondegeneracy of ground states for nonlinear Schrödinger equations with attractive inverse-power potential, communications on pure and applied analysis 20 (2021), no.1, 121–143.
(with Masahito Ohta) Strong instability of standing waves for nonlinear Schrödinger equations with attractive inverse power potential, Osaka Journal of Mathematics 56 (2019), no.4, 713–726.
(with Masahito Ohta) Strong instability of standing waves with negative energy for double power nonlinear Schrödinger equations, SUT Journal of Mathematics 54 (2018), no. 2, 131–143.
Instability of solitary waves for a generalized derivative nonlinear Schrödinger equation in a borderline case, Kodai Mathematical Journal 40 (2017), no. 3, 450–467.
(with Masayuki Hayashi and Takahisa Inui) A sufficient condition for global existence of solutions to a generalized derivative nonlinear Schrödinger equation, Analysis & PDE 10 (2017), no. 5, 1149–1167.