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We prove a local in time smoothing estimate for a magnetic Schrodinger equation with coefficients growing polynomially at spatial infinity. The assumptions on the magnetic field are gauge invariant and involve only the first two…

Analysis of PDEs · Mathematics 2016-03-24 Piero D'Ancona , Luca Fanelli

A nonlocal-in-time problem for the abstract Schr\"odinger equation is considered. By exploiting the linear nature of nonlocal condition we derive an exact representation of the solution operator under assumptions that the spectrum of…

Mathematical Physics · Physics 2018-08-31 Dmytro Sytnyk , Roderick Melnik

We prove spatiotemporal algebraically decaying estimates for the density of the solutions of the linearly damped nonlinear Schr\"odinger equation with localized driving, when supplemented with vanishing boundary conditions. Their derivation…

Mathematical Physics · Physics 2019-12-10 G. Fotopoulos , N. I. Karachalios , V. Koukouloyannis , K. Vetas

A local time decay estimate of fractional Schr\"odinger operators with slowly decaying positive potentials are studied. It is shown that its resolvent is smooth near zero and the time propagator has fast local time decay which is very…

Analysis of PDEs · Mathematics 2024-03-26 Kouichi Taira

We consider a class of dissipative stochastic differential equations (SDE's) with time-periodic coefficients in finite dimension, and the response of time-asymptotic probability measures induced by such SDE's to sufficiently regular, small…

Probability · Mathematics 2022-01-04 Michal Branicki , Kenneth Uda

We consider a family of parallel methods for constrained optimization based on projected gradient descents along individual coordinate directions. In the case of polyhedral feasible sets, local convergence towards a regular solution occurs…

Optimization and Control · Mathematics 2015-09-18 Olivier Bilenne

We apply the asymptotic iteration method (AIM) [J. Phys. A: Math. Gen. 36, 11807 (2003)] to solve new classes of second-order homogeneous linear differential equation. In particular, solutions are found for a general class of eigenvalue…

Mathematical Physics · Physics 2009-11-10 Hakan Ciftci , Richard L. Hall , Nasser Saad

We prove the sharp L^1-L^{\infty} time-decay estimate for the 2D-Schroedinger equation with a general family of scaling critical electromagnetic potentials.

Analysis of PDEs · Mathematics 2016-03-24 L. Fanelli , V. Felli , M. Fontelos , A. Primo

Recent results in the literature have provided connections between the so-called turnpike property, near optimality of closed-loop solutions, and strict dissipativity. Motivated by applications in economics, optimal control problems with…

Optimization and Control · Mathematics 2022-02-18 Lars Grüne , Lisa Krügel

In this paper we study spectral properties associated to Schrodinger operator with potential that is an exponential decaying function. As applications we prove local energy decay for solutions to the perturbed wave equation and lack of…

Analysis of PDEs · Mathematics 2011-03-22 Vladimir Georgiev , Mirko Tarulli

We obtain improved Strichartz estimates for solutions of the Schr\"odinger equation on compact manifolds with nonpositive sectional curvatures which are related to the classical universal results of Burq, G\'erard and Tzvetkov [11]. More…

Analysis of PDEs · Mathematics 2024-07-19 Xiaoqi Huang , Christopher D. Sogge

We obtain improved Strichartz estimates for solutions of the Schr\"odinger equation on negatively curved compact manifolds which improve the classical universal results results of Burq, G\'erard and Tzvetkov [11] in this geometry. In the…

Analysis of PDEs · Mathematics 2023-04-12 Matthew D. Blair , Xiaoqi Huang , Christopher D. Sogge

This paper examines asymptotic properties of local M-estimators under three sets of high-level conditions. These conditions are sufficiently general to cover the minimum volume predictive region, conditional maximum score estimator for a…

Statistics Theory · Mathematics 2020-01-15 Myung Hwan Seo , Taisuke Otsu

The initial value problem for the homogeneous Schr\"odinger equation is investigated for radially symmetric initial data with slow decay rates and not too wild oscillations. Our global wellposedness results apply to initial data for which…

Analysis of PDEs · Mathematics 2020-05-27 Rainer Mandel

We consider solutions $f=f(t,x,v)$ to the full (spatially inhomogeneous) Boltzmann equation with periodic spatial conditions $x \in \mathbb T^d$, for hard and moderately soft potentials \emph{without the angular cutoff assumption}, and…

Analysis of PDEs · Mathematics 2019-04-01 Cyril Imbert , Clément Mouhot , Luis Silvestre

We study the asymptotic behavior as |x| \to \infty of Schr\"odinger operators with homogeneous potentials. For this purpose, we use methods from semiclassical analysis and investigate semiclassical defect mesures. We prove their…

Analysis of PDEs · Mathematics 2025-01-24 Keita Mikami

We study local-in-time and global-in-time bilinear Strichartz estimates for the Schr\"odinger equation on waveguides. As applications, we apply those estimates to study global well-posedness of nonlinear Schr\"odinger equations on these…

Analysis of PDEs · Mathematics 2024-07-02 Yangkendi Deng , Chenjie Fan , Kailong Yang , Zehua Zhao , Jiqiang Zheng

We present a method to derive local estimates for some classes of fully nonlinear elliptic equations. The advantage of our method is that we derive Hessian estimates directly from $C^0$ estimates. Also, the method is flexible and can be…

Analysis of PDEs · Mathematics 2007-05-23 Sophie Chen

Energy decay is established for the damped wave equation on compact Riemannian manifolds where the damping coefficient is allowed to depend on time. Using a time dependent observability inequality, it is shown that the energy of solutions…

Analysis of PDEs · Mathematics 2023-11-14 Perry Kleinhenz

We study the Klein-Gordon equation with general interaction term, which may be linear or nonlinear, and space-time dependent. The initial data is general, large and non-radial. We prove that global solutions are asymptotically given by a…

Analysis of PDEs · Mathematics 2023-04-11 Avy Soffer , Xiaoxu Wu