Focusing and defocusing cases of the purely elliptic generalized Davey-Stewartson system
IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications), cilt.74, sa.5, ss.710-725, 2009 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 74 Sayı: 5
- Basım Tarihi: 2009
- Doi Numarası: 10.1093/imamat/hxp010
- Dergi Adı: IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications)
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.710-725
- Anahtar Kelimeler: Blow-up, GDS system, NLS, Scattering, Standing waves
- Boğaziçi Üniversitesi Adresli: Evet
Özet
We define the focusing and the defocusing cases for the purely elliptic generalized Davey-Stewartson system. These cases are mutually exclusive and exhaustive and therefore close the gap that was left in the previous studies. In the defocusing case, all solutions exist globally. In the focusing case, any initial data can be scaled to one with negative energy. The solution with the scaled initial data then blows up in finite time. We also show the existence of standing waves and the global existence and scattering of solutions with subminimal mass. Our results equally apply to the elliptic almost-cubic non-linear Schrödinger equation as described in Eden & Kuz (2009, Commun. Pure Appl. Anal.). © The Author 2009. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved.