a Department of Mathematics, Graduate School of Science, Osaka University, Osaka, Toyonaka 560-0043, Japan b Instituto de Matemáticas, UNAM Campus Morelia, AP 61-3 (Xangari), Morelia CP 58089, Michoacán, Mexico
Abstract:
We consider the Cauchy problem for a cubic nonlinear Schrödinger equation in the case of an odd initial data from H2∩H0,2. We prove the global existence in time of solutions to the Cauchy problem and construct the modified asymptotics for large values of time.