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Journal ArticleDOI

Profiles and Quantization of the Blow Up Mass for Critical Nonlinear Schrödinger Equation

TLDR
In this paper, the authors consider finite time blow up solutions to the critical nonlinear Schrodinger equation, and prove that the solution splits in two parts: the first part corresponds to the singular part and accumulates a quantized amount of L2 mass at the blow up point, the second part correspond to the regular part and has a strong L2 limit at blow up time.
Abstract
We consider finite time blow up solutions to the critical nonlinear Schrodinger equation Open image in new window For a suitable class of initial data in the energy space H1, we prove that the solution splits in two parts: the first part corresponds to the singular part and accumulates a quantized amount of L2 mass at the blow up point, the second part corresponds to the regular part and has a strong L2 limit at blow up time.

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Blow up dynamics for smooth equivariant solutions to the energy critical Schr\"odinger map

TL;DR: In this paper, the authors considered the energy critical Schrodinger map problem with the 2-sphere target for equivariant initial data of homotopy index $k = 1.
Journal ArticleDOI

Continuations of the nonlinear Schr\"odinger equation beyond the singularity

G. Fibich, +1 more
TL;DR: In this paper, the authors present four continuations of the critical nonlinear \schro equation (NLS) beyond the singularity: a sub-threshold power continuation, a shrinking-hole continuation for ring-type solutions, a vanishing nonlinear-damping continuation, and a complex Ginzburg-Landau (CGL) continuation.
Posted Content

Blow-up solutions on a sphere for the 3d quintic NLS in the energy space

TL;DR: In this article, it was shown that a log-log blow-up solution of the type studied by Merle-Rapha\"el-Szeftel (2001-2005) to the L 2 critical focusing NLS equation can be obtained in the radial energy space.
Journal ArticleDOI

On Singularity formation for the L^2-critical Boson star equation

TL;DR: In this paper, a general, nonperturbative result about finite-time blowup solutions for the $L 2 -critical boson star equation was proved, and it was shown that the limiting measure exhibits minimal mass concentration.
Journal ArticleDOI

Remarks on the Blow-Up Solutions for the Critical Gross-Pitaevskii Equation

TL;DR: In this article, the existence and qualitative properties of the minimal blow-up solutions of the critical Gross-Pitaevskii equation were investigated, where the authors considered the Bose-Einstein condensate.
References
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Journal ArticleDOI

Nonlinear scalar field equations, I existence of a ground state

TL;DR: In this article, a constrained minimization method was proposed for the case of dimension N = 1 (Necessary and sufficient conditions) for the zero mass case, where N is the number of dimensions in the dimension N.
BookDOI

The nonlinear Schrödinger equation : self-focusing and wave collapse

TL;DR: In this article, the authors present a basic framework to understand structural properties and long-time behavior of standing wave solutions and their relationship to a mean field generation and acoustic wave coupling.
Journal ArticleDOI

On a class of nonlinear Schro¨dinger equations

TL;DR: In this paper, the existence of standing wave solutions of nonlinear Schrodinger equations was studied and sufficient conditions for nontrivial solutionsu ∈W¯¯¯¯1,2(ℝ�姫 n ) were established.
Journal ArticleDOI

Uniqueness of positive solutions of Δu−u+up=0 in Rn

TL;DR: In this article, the uniqueness of the positive, radially symmetric solution to the differential equation Δu−u+up=0 (with p>1) in a bounded or unbounded annular region in Rn for all n ≥ 1, with the Neumann boundary condition on the inner ball and the Dirichlet boundary condition decaying to zero in the case of an unbounded region, was established.
Journal ArticleDOI

Nonlinear Schrödinger equations and sharp interpolation estimates

TL;DR: In this paper, a sharp sufficient condition for global existence for the nonlinear Schrodinger equation is obtained for the case σ = 2/N. This condition is derived by solving a variational problem to obtain the best constant for classical interpolation estimates of Nirenberg and Gagliardo.
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