Huoxiong Wu

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20242026

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math.AP2026

The derivative of the fractional discrete Laplacian is an exotic Riesz potential

Bo Li, Qingze Lin, Huoxiong Wu

Let $Δ_{N}$ be the multidimensional discrete Laplacian on $Z^{N}$ ( $N \geq 1$ ). In this note, we prove that, when $N = 1$ , the right hand derivative of $(- Δ_{1})^{s}$ at $0$ is an ex…

math.AP2025

Strichartz estimates involving orthonormal systems at the critical summability exponent

Guoxia Feng, Manli Song, Huoxiong Wu

The primary objective of this paper is to investigate the orthonormal Strichartz estimates at the critical summability exponent for the Schrödinger operator $e^{i t Δ}$ with initial…