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arXiv · 2607.04214

Scattering and Low-Speed Critical Elements for the 3D Focusing Energy-Critical NLS

Pang-Hung Chung·Dan Han
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Abstract

The below-threshold scattering problem is considered for the three-dimensional focusing energy-critical nonlinear Schr\"odinger equation. A main non-radial obstruction is the possible drift of the concentration center of a soliton-like critical element, which prevents a fixed-center localized virial estimate from closing directly. It is shown that such a compact critical solution must vanish if it has an $L_t^\infty L_x^q$ bound and its center drifts sufficiently slowly. The result covers the pure-energy, endpoint $L^4$, and finite-mass regimes and gives a corresponding conditional scattering criterion.

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Pang-Hung Chung, Dan Han. 2026-07-05. Scattering and Low-Speed Critical Elements for the 3D Focusing Energy-Critical NLS. https://arxiv.org/abs/2607.04214

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