Nonlinear Schrödinger equation with a point defect

Fukuizumi, Reika; Ohta, Masahito; Ozawa, Tohru

Annales de l'I.H.P. Analyse non linéaire, Volume 25 (2008) p. 837-845

Strong instability of solitary waves for nonlinear Klein-Gordon equations and generalized Boussinesq equations

Liu, Yue; Ohta, Masahito; Todorova, Grozdena

Annales de l'I.H.P. Analyse non linéaire, Volume 24 (2007) p. 539-548

Stability of solitary waves for derivative nonlinear Schrödinger equation

Colin, Mathieu; Ohta, Masahito

Annales de l'I.H.P. Analyse non linéaire, Volume 23 (2006) p. 753-764

Blow-up solutions and strong instability of standing waves for the generalized Davey-Stewartson system in ${ℝ}^2$

Ohta, Masahito

Annales de l'I.H.P. Physique théorique, Volume 63 (1995) p. 111-117

Instability of standing waves for the generalized Davey-Stewartson system

Ohta, Masahito

Annales de l'I.H.P. Physique théorique, Volume 62 (1995) p. 69-80