Abstract
We study the energy-critical focusing nonlinear Schrödinger equation with an energy-subcritical perturbation. We show the existence of a ground state in the four or higher dimensions. Moreover, we give a sufficient and necessary condition for a solution to scatter, in the spirit of Kenig and Merle (Invent Math 166:645–675, 2006).
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Notes
When \(d\le 4\), we take \(\left\Vert u \right\Vert_{ES(I)}:=\left\Vert \nabla u \right\Vert_{V(I)}\) and \(\left\Vert u \right\Vert_{ES^{*}(I)}:=\left\Vert \nabla u \right\Vert_{L^{\frac{2(d+2)}{d+4}}(I,L^{\frac{2(d+2)}{d+4}})}\).
When \(d=3\) and \(2< \frac{2(d+2)(p-1)}{d(p-1)+4}\) (hence \(p>3\)), we estimate as follows:
$$\begin{aligned}&\left\Vert\left( \sigma _{n}^{j} v_{m}^{j} \right) (G_{n}^{j})^{-1} \nabla e^{it\Delta } w_{n}^{k} \right\Vert_{L_{t,x}^{\frac{2(d+2)(p-1)}{d(p-1)+4}}} \nonumber \\&\quad \le \lambda _{n}^{j} \left\Vert \sigma _{n}^{j}v_{m}^{j} \right\Vert_{L_{t,x}^{\infty }} \left\Vert \nabla e^{it\Delta }(g_{n}^{j})^{-1} w_{n}^{k} \right\Vert_{L_{t,x}^{2}(K_{m}^{j})}^{\frac{2}{p-1}} \left\Vert \nabla e^{it\Delta } (g_{n}^{j})^{-1} w_{n}^{k} \right\Vert_{L_{t,x}^{\frac{2(d+2)}{d}}}^{\frac{p-3}{p-1}}. \end{aligned}$$(6.120)
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Acknowledgments
T. A. is partially supported by the Grant-in-Aid for Young Scientists (B) # 22740092 of JSPS. H. K. is partially supported by the Grant-in Aid for Research Activity Start-up # 23840037 of JSPS. H. N. is partially supported by Grant-in-Aid for Scientific Research (B) # 23340030 of JSPS. S. I. is partially supported by NSERC# 371637-2009.
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Akahori, T., Ibrahim, S., Kikuchi, H. et al. Existence of a ground state and scattering for a nonlinear Schrödinger equation with critical growth. Sel. Math. New Ser. 19, 545–609 (2013). https://doi.org/10.1007/s00029-012-0103-5
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DOI: https://doi.org/10.1007/s00029-012-0103-5
Keywords
- Nonlinear Schrödinger equation
- Scattering problem
- Profile decomposition
- Virial identity
- Variational methods
- Ground state