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We demonstrate a quantitative version of the usual properties related to unique continuation from an interior datum for the Schr\"odinger equation with bounded or unbounded potential. The inequalities we establish have constants that…

Analysis of PDEs · Mathematics 2025-04-11 Mourad Choulli , Hiroshi Takase

We prove the strong unique continuation property for many-body Schr\"odinger operators with an external potential and an interaction potential both in $L^p_{\rm loc}(\mathbb{R}^d)$, where $p > \max(2d/3,2)$, independently of the number of…

Analysis of PDEs · Mathematics 2019-01-30 Louis Garrigue

Recent (scale-free) quantitative unique continuation estimates for spectral subspaces of Schr\"odinger operators are extended to allow singular potentials such as certain $L^p$-functions. The proof is based on accordingly adapted Carleman…

Analysis of PDEs · Mathematics 2023-07-12 Alexander Dicke , Christian Rose , Albrecht Seelmann , Martin Tautenhahn

We prove a quantitative unique continuation principle for Schr\"odinger operators $H=-\Delta+V$ on $\mathrm{L}^2(\Omega)$, where $\Omega$ is an open subset of $\mathbb{R}^d$ and $V$ is a singular potential: $V \in \mathrm{L}^\infty(\Omega)…

Mathematical Physics · Physics 2015-01-20 Abel Klein , C. S. Sidney Tsang

This paper mainly addresses the strong unique continuation property for the electromagnetic Schr\"{o}dinger operator with complex-valued coefficients. Appropriate multipliers with physical backgrounds have been introduced to prove a priori…

Mathematical Physics · Physics 2016-07-29 Xiaojun Lu , Xiaofen Lv

In this paper we study unique continuation theorems for magnetic Schr\"odinger equation via Carleman estimates. We use integration by parts techniques in order to show these estimates. We consider electric and magnetic potentials with…

Analysis of PDEs · Mathematics 2013-12-10 Naiara Arrizabalaga , Miren Zubeldia

We prove a quantitative unique continuation principle for infinite dimensional spectral subspaces of Schr\"odinger operators. Let $\Lambda_L = (-L/2,L/2)^d$ and $H_L = -\Delta_L + V_L$ be a Schr\"odinger operator on $L^2 (\Lambda_L)$ with a…

Analysis of PDEs · Mathematics 2017-09-28 Matthias Täufer , Martin Tautenhahn

Here, the Morgan type uncertainty principle and unique continuation properties of abstract Schredinger equations with time dependent potentials are obtained in Hilbert space valued function classes. The equations include linear operator in…

Analysis of PDEs · Mathematics 2019-06-04 Veli Shakhmurov

Quantitative unique continuation principles for multiscale structures are an important ingredient in a number applications, e.g. random Schr\"odinger operators and control theory. We review recent results and announce new ones regarding…

Analysis of PDEs · Mathematics 2016-01-08 Denis Borisov , Ivica Nakić , Christian Rose , Martin Tautenhahn , Ivan Veselić

In this article we prove the property of unique continuation (also known for C^\infty functions as quasianalyticity) for solutions of the differential inequality |\Delta u| \leq |Vu| for V from a wide class of potentials (including…

Analysis of PDEs · Mathematics 2009-02-04 D. Kinzebulatov , L. Shartser

We study the spectral properties of a Schr\"odinger operator, in presence of a confining potential given by the distance squared from a fixed compact potential well. We prove continuity estimates on both the eigenvalues and the eigenstates,…

Analysis of PDEs · Mathematics 2025-05-19 Chiara Alessi , Lorenzo Brasco , Michele Miranda

In this paper, Hardy's uncertainty principle and unique continuation properties of Schrodinger equations with operator potentials in Hilbert space-valued classes are obtained. Since the Hilbert space H and linear operators are arbitrary, by…

Analysis of PDEs · Mathematics 2019-06-04 Veli Shakhmurov

We show that formal Schr\"odinger operators with singular potentials from the space W^{-1}_{2,unif}(R) can be naturally defined to give selfadjoint and bounded below operators, which depend continuously in the uniform resolvent sense on the…

Spectral Theory · Mathematics 2007-05-23 Rostyslav O. Hryniv , Yaroslav V. Mykytyuk

In this paper, Morgan type uncertainty principle and unique continuation properties of abstract Schr\"odinger equations with time dependent potentials in vector-valued classes are obtained. The equation involves a possible linear operators…

Analysis of PDEs · Mathematics 2017-06-06 Veli Shakhmurov

Using an extension of the H\"ormander product of distributions, we obtain an intrinsic formulation of one-dimensional Schr\"odinger operators with singular potentials. This formulation is entirely defined in terms of standard {\it Schwartz}…

Spectral Theory · Mathematics 2018-07-17 Nuno Costa Dias , Joao Nuno Prata , Cristina Jorge

In this article we study the strong unique continuation property for solutions of higher order (variable coefficient) fractional Schr\"odinger operators. We deduce the strong unique continuation property in the presence of subcritical and…

Analysis of PDEs · Mathematics 2019-02-27 María-Ángeles García-Ferrero , Angkana Rüland

In this work we shall review some of our recent results concerning unique continuation properties of solutions of Schr\"odinger equations. In this equations we include linear ones with a time depending potential and semi-linear ones.

Analysis of PDEs · Mathematics 2011-12-12 Luis Escauriaza , Carlos E. Kenig , Gustavo Ponce , Luis Vega

The unique-continuation property from sets of positive measure is here proven for the many-body magnetic Schr\"odinger equation. This property guarantees that if a solution of the Schr\"odinger equation vanishes on a set of positive…

Mathematical Physics · Physics 2024-10-22 Andre Laestadius , Michael Benedicks , Markus Penz

In this survey we discuss spectral and quantum dynamical properties of discrete one-dimensional Schr\"odinger operators whose potentials are obtained by real-valued sampling along the orbits of an ergodic invertible transformation. After an…

Spectral Theory · Mathematics 2019-02-25 David Damanik

We establish quantitative upper and lower bounds for Schr\"odinger operators with complex potentials that satisfy some weak form of sparsity. Our first result is a quantitative version of an example, due to S.\ Boegli (Comm. Math. Phys.,…

Spectral Theory · Mathematics 2022-04-20 Jean-Claude Cuenin
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