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We consider parabolic Schr\"odinger type equations associated to fractional powers of uniformly elliptic 2m-order operators with constant coefficients. Potentials and initial data are considered in suitable Morrey spaces. By means of…

Analysis of PDEs · Mathematics 2024-07-24 Jan W. Cholewa , Anibal Rodriguez-Bernal

In this paper we prove the local and global well-posedness of the time fractional abstract Schr\"odinger type evolution equation on the Hilbert space and as an application, we prove the local and global well-posedness of the fractional…

Analysis of PDEs · Mathematics 2023-11-29 Mingxuan He , Na Deng

In this paper we give new estimates for the solution to the Schr\"odinger equation with quadratic and sub-quadratic potentials in the framework of modulation spaces.

Analysis of PDEs · Mathematics 2012-12-27 Keiichi Kato , Masaharu Kobayashi , Shingo Ito

We prove unique continuation properties for solutions of evolution Schr\"odinger equation with time dependent potentials. In the case of the free solution these correspond to uncertainly principles referred to as being of Morgan type. As an…

Analysis of PDEs · Mathematics 2014-02-26 L. Escauriaza , C. E. Kenig , G. Ponce , L. Vega

We prove unique continuation principles for solutions of evolution Schr\"odinger equations with time dependent potentials. These correspond to uncertainly principles of Paley-Wiener type for the Fourier transform. Our results extends to a…

Analysis of PDEs · Mathematics 2012-01-27 Carlos E. Kenig , Gustavo Ponce , Luis Vega

We consider semiclassical Schr\"odinger operators on the real line of the form $$H(\hbar)=-\hbar^2 \frac{d^2}{dx^2}+V(\cdot;\hbar)$$ with $\hbar>0$ small. The potential $V$ is assumed to be smooth, positive and exponentially decaying…

Spectral Theory · Mathematics 2015-05-28 Ovidiu Costin , Roland Donninger , Wilhelm Schlag , Saleh Tanveer

We discuss Schr\"odinger operators on a half-line with decaying oscillatory potentials, such as products of an almost periodic function and a decaying function. We provide sufficient conditions for preservation of absolutely continuous…

Spectral Theory · Mathematics 2015-06-05 Milivoje Lukic

In this paper we study the following class of fractional relativistic Schr\"odinger equations: \begin{equation*} \left\{ \begin{array}{ll} (-\Delta+m^{2})^{s}u + V(\varepsilon x) u= f(u) &\mbox{ in } \mathbb{R}^{N}, \\ u\in…

Analysis of PDEs · Mathematics 2023-03-24 Vincenzo Ambrosio

We prove inverse Strichartz theorems at $L^2$ regularity for a family of Schr\"{o}dinger evolutions in one space dimension. Prior results rely on spacetime Fourier analysis and are limited to the translation-invariant equation $i\partial_t…

Analysis of PDEs · Mathematics 2017-01-05 Casey Jao , Rowan Killip , Monica Visan

We discuss exponential decay in $L^p(R^N)$, $1\leq p \leq \infty$, of solutions of a fractional Schr\"odinger parabolic equation with a locally uniformly integrable potential. The exponential type of the semigroup of solutions is considered…

Analysis of PDEs · Mathematics 2024-05-15 Jan W. Cholewa , Anibal Rodriguez-Bernal

We consider Schr\"odinger operators $H=- \d^2/\d r^2+V$ on $L^2([0,\infty))$ with the Dirichlet boundary condition. The potential $V$ may be local or non-local, with polynomial decay at infinity. The point zero in the spectrum of $H$ is…

Mathematical Physics · Physics 2007-07-17 Arne Jensen , Gheorghe Nenciu

Strong unique continuation properties and a classification of the asymptotic profiles are established for the fractional powers of a Schr\"odinger operator with a Hardy-type potential, by means of an Almgren monotonicity formula combined…

Analysis of PDEs · Mathematics 2024-05-22 Giovanni Siclari

The abstract Cauchy problem for the distributed order fractional evolution equation in the Caputo and in the Riemann-Liouville sense is studied for operators generating a strongly continuous one-parameter semigroup on a Banach space.…

Analysis of PDEs · Mathematics 2015-02-17 Emilia Bazhlekova

We consider the Schr\"odinger equation with a Hamiltonian given by a second order difference operator with nonconstant growing coefficients, on the half one dimensional lattice. This operator appeared first naturally in the construction and…

Mathematical Physics · Physics 2016-10-26 August J. Krueger , Avy Soffer

We prove Strichartz estimates for the absolutely continuous evolution of a Schr\"odinger operator $H = (i\nabla + A)^2 + V$ in $\R^n$, $n > 2$. Both the magnetic and electric potentials are time-independent and satisfy pointwise polynomial…

Analysis of PDEs · Mathematics 2008-04-02 Michael Goldberg

We prove the logarithmic convexity of certain quantities, which measure the quadratic exponential decay at infinity and within two characteristic hyperplanes of solutions of Schr\"odinger evolutions. As a consequence we obtain some…

Analysis of PDEs · Mathematics 2008-02-13 L. Escauriaza , C. E. Kenig , G. Ponce , L. Vega

This work deals with Schr\"odinger equations with quadratic and sub-quadratic Hamiltonians perturbed by a potential. In particular we shall focus on bounded, but not necessarily smooth perturbations. We shall give a representation of such…

Analysis of PDEs · Mathematics 2015-02-19 Elena Cordero , Fabio Nicola

In this paper we give an estimate for the solution to the Schr\"odinger equation with sub-quadratic potentials in modulation spaces by the norm of the initial functions in Wiener-Amalgum spaces.

Analysis of PDEs · Mathematics 2024-03-01 Kosuzu Hamaoka , Keiichi Kato , Shun Takizawa

Let $ H:=-\tfrac12\Delta+V$ be a one-dimensional continuum Schr\"odinger operator. Consider ${\hat H}:= H+\xi$, where $\xi$ is a translation invariant Gaussian noise. Under some assumptions on $\xi$, we prove that if $V$ is locally…

Probability · Mathematics 2021-07-26 Pierre Yves Gaudreau Lamarre

We prove semiclassical estimates for the Schr\''odinger-von Neumann evolution with $C^{1,1}$ potentials and density matrices whose square root have either Wigner functions with low regularity independent of the dimension, or matrix elements…

Analysis of PDEs · Mathematics 2020-12-01 François Golse , Thierry Paul
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