Scattering for the $L^2$ supercritical point NLS
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- by Riccardo Adami, Reika Fukuizumi and Justin Holmer PDF
- Trans. Amer. Math. Soc. 374 (2021), 35-60 Request permission
Abstract:
We consider the 1D nonlinear Schrödinger equation with focusing point nonlinearity. âPointâ means that the pure-power nonlinearity has an inhomogeneous potential and the potential is the delta function supported at the origin. This equation is used to model a Kerr-type medium with a narrow strip in the optic fibre. There are several mathematical studies on this equation and the local/global existence of a solution, blow-up occurrence, and blow-up profile have been investigated. In this paper we focus on the asymptotic behavior of the global solution, i.e., we show that the global solution scatters as $t\to \pm \infty$ in the $L^2$ supercritical case. The main argument we use is due to Kenig-Merle, but it is required to make use of an appropriate function space (not Strichartz space) according to the smoothing properties of the associated integral equation.References
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Additional Information
- Riccardo Adami
- Affiliation: DISMA, Politecnico di Torino, Italy
- MR Author ID: 630684
- Email: riccardo.adami@polito.it
- Reika Fukuizumi
- Affiliation: Graduate School of Information Sciences, Tohoku University, Japan
- MR Author ID: 674809
- Email: fukuizumi@math.is.tohoku.ac.jp
- Justin Holmer
- Affiliation: Department of Mathematics, Brown University, Providence, Rhode Island
- MR Author ID: 759238
- Email: holmer@math.brown.edu
- Received by editor(s): May 9, 2019
- Received by editor(s) in revised form: October 26, 2019
- Published electronically: October 14, 2020
- Additional Notes: This work was supported by JSPS KAKENHI Grant Number 15K04944.
- © Copyright 2020 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 374 (2021), 35-60
- MSC (2010): Primary 35B40, 35Q55
- DOI: https://doi.org/10.1090/tran/8065
- MathSciNet review: 4188177