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We extend the Feynman-Kac formula for Schr\"odinger type operators on vector bundles over noncompact Riemannian manifolds to possibly very singular potentials that appear in hydrogen like quantum mechanical problems and that need not be…

Mathematical Physics · Physics 2012-03-21 Batu Güneysu

We define a Schr\"odinger operator on the half-space with a discontinuous magnetic field having a piecewise-constant strength and a uniform direction. Motivated by applications in the theory of superconductivity, we study the infimum of the…

Mathematical Physics · Physics 2022-11-07 Wafaa Assaad , Emanuela L. Giacomelli

We prove that the realization $A_p$ in $L^p(\mathbb{R}^N),\,1<p<\infty$, of the Schr\"odinger type operator $A=(1+|x|^{\alpha})\Delta-|x|^{\beta}$ with domain $D(A_p)=\{u\in W^{2,p}(\mathbb{R}^N): Au\in L^p(\mathbb{R}^N)\}$ generates a…

Analysis of PDEs · Mathematics 2014-06-03 Anna Canale , Abdelaziz Rhandi , Cristian Tacelli

Given a bounded domain in the Euclidean space satisfying the uniform outer cone condition, we show that a uniformly elliptic operator of second order with continuous second order coefficients generates a holomorphic semigroup on the space…

Analysis of PDEs · Mathematics 2010-10-11 Wolfgang Arendt , Reiner Schätzle

We prove bilinear estimates for the Schr\"odinger equation on 3D domains, with Dirichlet boundary conditions. On non-trapping domains, they match the $\mathbb{R}^3$ case, while on bounded domains they match the generic boundary less…

Analysis of PDEs · Mathematics 2021-08-23 Fabrice Planchon

In this article we study for $p\in (1,\infty)$ the $L^p$-realization of the vector-valued Schr\"odinger operator $\mathcal{L}u := \mathrm{div} (Q\nabla u) + V u$. Using a noncommutative version of the Dore-Venni theorem due to Monniaux and…

Analysis of PDEs · Mathematics 2017-05-10 Markus Kunze , Luca Lorenzi , Abdallah Maichine , Abdelaziz Rhandi

We study the nonlinear Schr\"odinger equation with initial data in $\mathcal{Z}^s_p(\mathbb{R}^d)=\dot{H}^s(\mathbb{R}^d)\cap L^p(\mathbb{R}^d)$, where $0<s<\min\{d/2,1\}$ and $2<p<2d/(d-2s)$. After showing that the linear Schr\"odinger…

Analysis of PDEs · Mathematics 2020-11-09 Vanessa Barros , Simão Correia , Filipe Oliveira

The Stokes equation on a domain $\Omega \subset R^n$ is well understood in the $L^p$-setting for a large class of domains including bounded and exterior domains with smooth boundaries provided $1<p<\infty$. The situation is very different…

Analysis of PDEs · Mathematics 2014-02-18 Ken Abe , Yoshikazu Giga , Matthias Hieber

In the paper \cite{KLMR} the $L^p$-realization $L_p$ of the matrix Schr\"odinger operator $\mathcal{L}u=div(Q\nabla u)+Vu$ was studied. The generation of a semigroup in $L^p(\R^d,\C^m)$ and characterization of the domain $D(L_p)$ has been…

Analysis of PDEs · Mathematics 2018-02-13 Abdallah Maichine , Abdelaziz Rhandi

Schr\"odinger equations with nonlinearities concentrated in some regions of space are good models of various physical situations and have interesting mathematical properties. We show that in the semiclassical limit it is possible to…

Condensed Matter · Physics 2015-06-25 Giovanni Jona-Lasinio , Carlo Presilla , Johannes Sjöstrand

We consider evolutionary Stokes system, coupled with the so-called dynamic slip boundary condition, in the simple geometry of a $d$-dimensional half-space. Using the standard technique of the Fourier transform in tangential directions, we…

Analysis of PDEs · Mathematics 2026-03-19 Dalibor Pražák , Michael Zelina

We consider the cubic non-linear Schr\"odinger equation on general closed (compact without boundary) Riemannian surfaces. The problem is known to be locally well-posed in $H^s(M)$ for $s>1/2$. Global well-posedness for $s\geq 1$ follows…

Analysis of PDEs · Mathematics 2011-11-17 Zaher Hani

This work represents a first systematic attempt to create a common ground for semi-classical and time-frequency analysis. These two different areas combined together provide interesting outcomes in terms of Schr\"odinger type equations.…

Mathematical Physics · Physics 2018-01-17 Elena Cordero , Maurice de Gosson , Fabio Nicola

For a compact spinc manifold $X$ with boundary $b_1(\partial X)=0$, we consider moduli spaces of solutions to the Seiberg-Witten equations in a generalized double Coulomb slice in $L^2_1$ (i.e., $W^{1,2}$) Sobolev regularity. We prove they…

Differential Geometry · Mathematics 2021-12-07 Piotr Suwara

Consider the H^{1/2}-critical Schroedinger equation with a cubic nonlinearity in R^3, i \partial_t \psi + \Delta \psi + |\psi|^2 \psi = 0. It admits an eight-dimensional manifold of periodic solutions called solitons e^{i(\Gamma + vx -…

Analysis of PDEs · Mathematics 2009-08-17 Marius Beceanu

We study elliptic and parabolic problems governed by the singular elliptic operators \begin{align*} \mathcal L=y^{\alpha_1}\mbox{Tr }\left(QD^2_xu\right)+2y^{\frac{\alpha_1+\alpha_2}{2}}q\cdot \nabla_xD_y+\gamma y^{\alpha_2}…

Analysis of PDEs · Mathematics 2024-05-17 Giorgio Metafune , Luigi Negro , Chiara Spina

This paper and its follow-up arXiv:2508.11109 are concerned with the well-posedness and $\mathrm{L}^p$-based Sobolev regularity for appropriate weak formulations of a family of prototypical PDEs posed on manifolds of minimal regularity. In…

Analysis of PDEs · Mathematics 2026-04-20 Gonzalo A. Benavides , Ricardo H. Nochetto , Mansur Shakipov

We study admissible and equivalence point transformations between generalized multidimensional nonlinear Schr\"odinger equations and classify Lie symmetries of such equations. We begin with a wide superclass of Schr\"odinger-type equations,…

Mathematical Physics · Physics 2020-06-12 Célestin Kurujyibwami , Roman O. Popovych

This paper is to study some conditions on semigroups, generated by some class of non-densely defined operators in the closure of its domain, in order that certain bounded perturbations preserve some regularity properties of the semigroup…

Functional Analysis · Mathematics 2019-09-26 Deliang Chen

We consider perturbations of the semiclassical Schr{\"o}dinger equation on a compact Riemannian surface with constant negative curvature and without boundary. We show that, for scales of times which are logarithmic in the size of the…

Analysis of PDEs · Mathematics 2014-12-16 Gabriel Riviere
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