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arXiv · 2509.18002

Dispersive estimates for fractional order Schrödinger operators

M. Burak Erdogan·Michael Goldberg·William Green
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Abstract

We prove dispersive bounds for fractional Schrödinger operators on $\mathbb R^n$ of the form $H=(-Δ)^α+V$ with $V$ a real-valued, decaying potential and $α\notin\mathbb N$. We derive pointwise bounds on the resolvent operators for all $0<α<\frac{n}{2}$, a quantitative limiting absorption principle for $\frac12<α<\frac{n}{2}$, and establish global dispersive estimates in dimension $n\geq 2$ for the range $\frac{n+1}{4}\leq α<\frac{n}2$.

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M. Burak Erdogan, Michael Goldberg, William Green. 2026-07-24. Dispersive estimates for fractional order Schrödinger operators. https://arxiv.org/abs/2509.18002

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