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Related papers: $L^p$-estimates for the wave equation with partial…

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This paper investigates the $L^p$ boundedness of wave operators for the Laplace operator with finite rank perturbations \begin{equation*} H=-\Delta+\sum\limits_{i=1}^N\langle\cdot\,, \varphi_i\rangle \varphi_i \qquad \mbox{on}\,\,\, \R^d.…

Analysis of PDEs · Mathematics 2025-08-08 Han Cheng , Shanlin Huang , Avy Soffer , Zhao Wu

We prove that the wave operators for $n \times n$ matrix Schr\"odinger equations on the half line, with general selfadjoint boundary condition, are bounded in the spaces $L^p(\mathbb R^+, \mathbb C^n), 1 < p < \infty, $ for slowly decaying…

Mathematical Physics · Physics 2021-08-03 Ricardo Weder

We consider the higher order Schr\"odinger operator $H=(-\Delta)^m+V(x)$ in $n$ dimensions with real-valued potential $V$ when $n>2m$, $m\in \mathbb N$. We adapt our recent results for $m>1$ to show that the wave operators are bounded on…

Analysis of PDEs · Mathematics 2025-03-12 M. Burak Erdogan , William R. Green

In this paper, we consider a class of conical singular spaces $\Sigma=(0,\infty)_r\times Y$ equipped with the metric $g=\mathrm{d}r^2+r^2h$, where the cross section $Y$ is a compact $(n-1)$-dimensional closed Riemannian manifold $(Y,h)$…

Analysis of PDEs · Mathematics 2025-04-07 Xiaofen Gao , Jialu Wang , Chengbin Xu , Fang Zhang

In this paper we consider the inverse boundary value problem for the Schr\"odinger equation with potential in $L^p$ class, $p>4/3$. We show that the potential is uniquely determined by the boundary measurements.

Analysis of PDEs · Mathematics 2017-04-24 Eemeli Blåsten , Leo Tzou , Jenn-Nan Wang

This paper is devoted to establishing several types of $L^p$-boundedness of wave operators $W_\pm=W_\pm(H, \Delta^2)$ associated with the bi-Schr\"odinger operators $H=\Delta^{2}+V(x)$ on the line $\mathbb{R}$. Given suitable decay…

Analysis of PDEs · Mathematics 2024-06-19 Haruya Mizutani , Zijun Wan , Xiaohua Yao

We give another proof of the $L^p$ boundedness of scattering wave operators, at the low frequency part of the data. The proof also allows the control of the commutator of multiplication by $|x|$ with the wave operator in $L^p$. The method…

Analysis of PDEs · Mathematics 2022-02-08 Avy Soffer , Xiaoxu Wu

In this paper we investigate a construction of scattering for wave-type equations with singular potentials on the whole space $\mathbb{R}^n$ in a framework of weak-$L^p$ spaces. First, we use an Yamazaki-type estimate for wave groups on…

Analysis of PDEs · Mathematics 2026-03-20 Pham Truong Xuan

We generalize the recent result of Erdo{\u g}an, Goldberg and Green on the $L^p$-boundedness of wave operators for two dimensional Schr\"odinger operators and prove that they are bounded in $L^p(\R^2)$ for all $1<p<\infty$ if and only if…

Analysis of PDEs · Mathematics 2021-03-17 Kenji Yajima

We consider the higher order Schr\"odinger operator $H=(-\Delta)^m+V(x)$ in $n$ dimensions with real-valued potential $V$ when $n>4m-1$, $m\in \mathbb N$. We show that for any $\frac{2n}{n-4m+1}<p\leq \infty$ and $0\leq \alpha…

Analysis of PDEs · Mathematics 2023-07-20 M. Burak Erdogan , Michael Goldberg , William R. Green

Let $H=-\Delta+V$ be a Schr\"odinger operator on $L^2(\mathbb R^2)$ with real-valued potential $V$, and let $H_0=-\Delta$. If $V$ has sufficient pointwise decay, the wave operators $W_{\pm}=s-\lim_{t\to \pm\infty} e^{itH}e^{-itH_0}$ are…

Analysis of PDEs · Mathematics 2018-09-13 Burak Erdogan , Michael Goldberg , William R. Green

We prove spacetime weighted-L^2 estimates for the Schrodinger and wave equation with an inverse-square potential. We then deduce Strichartz estimates for these equations.

Analysis of PDEs · Mathematics 2007-05-23 Nicolas Burq , Fabrice Planchon , John G. Stalker , A. Shadi Tahvildar-Zadeh

Let $H=-\Delta+V$ be a Schr\"odinger operator on $L^2(\mathbb R^4)$ with real-valued potential $V$, and let $H_0=-\Delta$. If $V$ has sufficient pointwise decay, the wave operators $W_{\pm}=s-\lim_{t\to \pm\infty} e^{itH}e^{-itH_0}$ are…

Analysis of PDEs · Mathematics 2018-09-13 Michael Goldberg , William R. Green

We consider the continuity property in Lebesgue spaces $L^p(\R^m)$ of wave operators $W_\pm$ of scattering theory for Schr\"odinger operator $H=-\lap + V$ on $\R^m$, $|V(x)|\leq C\ax^{-\delta}$ for some $\delta>2$ when $H$ is of exceptional…

Mathematical Physics · Physics 2016-02-24 Kenji Yajima

Let $H = \Delta^2 + V$ be the fourth-order Schr\"odinger operator on $\mathbb{R}^3$ with a real-valued fast-decaying potential $V$. If zero is neither a resonance nor an eigenvalue of $H$, then it was recently shown that the wave operators…

Analysis of PDEs · Mathematics 2025-05-12 Haruya Mizutani , Zijun Wan , Xiaohua Yao

This paper establishes the $L^p$ boundedness of wave operators for linear Schr\"odinger equations in $\mathbb{R}^3$ with time-dependent potentials. The approach to the proof is based on new cancellation lemmas. As a typical application…

Analysis of PDEs · Mathematics 2025-01-24 Avy Soffer , Xiaoxu Wu

We prove existence and uniqueness of $L^2$ solutions to the inhomogeneous wave equation on $\mathbb{R}^{n-1}\times\mathbb{R}$ under the assumption that the inhomogeneous data lies in $L^p(\mathbb{R}^n)$ for $p=2n/(n+4)$. We also require the…

Analysis of PDEs · Mathematics 2019-11-06 Benjamin Foster

We obtain weighted $L^2$ estimates for the elastic wave equation perturbed by singular potentials including the inverse-square potential. We then deduce the Strichartz estimates under the sole ellipticity condition for the Lam\'e operator…

Analysis of PDEs · Mathematics 2020-08-25 Seongyeon Kim , Yehyun Kwon , Ihyeok Seo

In this paper, we study the linear and nonlinear Schr\"odinger equations with a time-decaying harmonic oscillator and inverse-square potential. This model retains a form of scale invariance, and using this property, we demonstrate the…

Analysis of PDEs · Mathematics 2025-07-25 Atsuhide Ishida , Masaki Kawamoto

Let $\mathcal{L}_a$ be a Schr\"odinger operator with inverse square potential $a|x|^{-2}$ on $\mathbb{R}^d, d\geq 3$. The main aim of this paper is to prove weighted estimates for fractional powers of $\mathcal{L}_a$. The proof is based on…

Analysis of PDEs · Mathematics 2016-11-15 The Anh Bui , Piero D'Ancona , Xuan Thinh Duong , Ji Li , Fu Ken Ly