We study a system of nonlinear Schrödinger equations with quadratic interaction in space dimension . The Cauchy problem is studied in , in , and in the weighted space under mass resonance condition, where and is the Fourier transform. The existence of ground states is studied by variational methods. Blow-up solutions are presented in an explicit form in terms of ground states under mass resonance condition, which ensures the invariance of the system under pseudo-conformal transformations.
@article{AIHPC_2013__30_4_661_0,
author = {Hayashi, Nakao and Ozawa, Tohru and Tanaka, Kazunaga},
title = {On a system of nonlinear Schr\"odinger equations with quadratic interaction},
journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
volume = {30},
year = {2013},
pages = {661-690},
doi = {10.1016/j.anihpc.2012.10.007},
mrnumber = {3082479},
zbl = {1291.35347},
language = {en},
url = {http://dml.mathdoc.fr/item/AIHPC_2013__30_4_661_0}
}
Hayashi, Nakao; Ozawa, Tohru; Tanaka, Kazunaga. On a system of nonlinear Schrödinger equations with quadratic interaction. Annales de l'I.H.P. Analyse non linéaire, Tome 30 (2013) pp. 661-690. doi : 10.1016/j.anihpc.2012.10.007. http://gdmltest.u-ga.fr/item/AIHPC_2013__30_4_661_0/
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