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arXiv · 2609.33775

Scattering for Short-Range Mass-Subcritical Choquard Equations

Alessandro Michelangeli·Mirko Tarulli
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Abstract

We study scattering for the defocusing inhomogeneous generalized Choquard equation with data in the conformal energy space. In the full short-range mass-subcritical regime, a key estimate for the nonlinear term yields scattering in \(L^2\). A pseudoconformal argument in the compactified variables then gives scattering in \(H^1\). In the homogeneous case, estimates based on the Galilean vector field further imply scattering in \(Σ\) above the Strauss threshold. The method avoids the additional algebraic restrictions arising from intermediate Strichartz-Sobolev estimates.

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Alessandro Michelangeli, Mirko Tarulli. 2026-09-27. Scattering for Short-Range Mass-Subcritical Choquard Equations. https://arxiv.org/abs/2609.33775

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