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We construct a semiclassical parametrix for the resolvent of the Laplacian acing on functions on non-trapping conformally compact manifolds with variable sectional curvature at infinity, we use it to prove high energy resolvent estimates…

Analysis of PDEs · Mathematics 2015-11-19 Antonio Sa Barreto , Yiran Wang

We study resolvent estimates for non-selfadjoint semiclassical pseudodifferential operators with double characteristics. Assuming that the quadratic approximation along the double characteristics is elliptic, we obtain polynomial upper…

Analysis of PDEs · Mathematics 2016-07-14 Joe Viola

We discuss pluripotential aspects of the Monge-Amp\`ere equations on compact Hermitian manifolds and prove $L^{\infty}$ estimates for any metric, as well as the existence of weak solutions under an extra assumption.

Complex Variables · Mathematics 2009-10-21 Slawomir Dinew , Slawomir Kolodziej

For the magnetic Hamiltonian with singular vector potentials, we analytically continue the resolvent to a logarithmic neighborhood of the positive real axis and prove resolvent estimates there. As applications, we obtain asymptotic…

Analysis of PDEs · Mathematics 2022-07-27 Mengxuan Yang

The aim of this short paper is to show that some assumptions in [10] can be relaxed and even dropped when looking for weak solutions instead of strong ones. This improvement is a consequence of two results concerning gradient terms: an…

Analysis of PDEs · Mathematics 2023-02-24 Umberto Guarnotta , Salvatore A. Marano

We give an elementary proof of weighted resolvent bounds for semiclassical Schr\"odinger operators in dimension two. We require the potential function to be Lipschitz with long range decay. The resolvent norm grows exponentially in the…

Analysis of PDEs · Mathematics 2017-06-06 Jacob Shapiro

There have been a lot of works concerning the Strichartz estimates for the perturbed Schr\"odinger equation by potential. These can be basically carried out adopting the well-known procedure for obtaining the Strichartz estimates from the…

Analysis of PDEs · Mathematics 2021-02-24 Seongyeon Kim , Ihyeok Seo , Jihyeon Seok

We prove semiclassical resolvent estimates for the Schr{\"o}dinger operator in R d , d $\ge$ 3, with real-valued radial potentials V $\in$ L $\infty$ (R d). In particular, we show that if V (x) = O x --$\delta$ with $\delta$ > 2, then the…

Analysis of PDEs · Mathematics 2021-02-03 Georgi Vodev

We study the asymptotic behaviour of solutions to semi-classical nonlinear Schrodinger equations with a potential, for concentrating and oscillating initial data, when the nonlinearity is repulsive and the potential is a polynomial of…

Analysis of PDEs · Mathematics 2007-05-23 Remi Carles , Luc Miller

This paper investigates the localization properties of solutions to the semi-classical Schr\"odinger equation on closed Riemann surfaces. Unlike classical studies that assume a smooth potential, our work addresses the challenges arising…

Analysis of PDEs · Mathematics 2026-01-06 Sébastien Campagne

In this paper we prove a subelliptic resolvent estimate for a class of semiclassical non-self-adjoint Schr\"odinger operators with purely imaginary potentials when the spectral parameter is in a parabolic neighborhood of the imaginary axis.

Analysis of PDEs · Mathematics 2016-10-04 Ben Bellis

This paper shows how abstract resolvent estimates imply local smoothing for solutions to the Schr\"odinger equation. If the resolvent estimate has a loss when compared to the optimal, non-trapping estimate, there is a corresponding loss in…

Analysis of PDEs · Mathematics 2007-11-19 Hans Christianson

We identify a class of potentials for which the semiclassical estimate $N^{\text{(semi)}}=\frac{1}{\pi}\int_0^\infty dr\sqrt{-V(r)\theta[-V(r)]}$ of the number $N$ of (S-wave) bound states provides a (rigorous) lower limit: $N\ge…

Mathematical Physics · Physics 2009-11-10 Fabian Brau , Francesco Calogero

We propose in this paper to study the solutions of some nonlinear elliptic equations with singular potential.

Analysis of PDEs · Mathematics 2015-10-06 Anouar Ben Mabrouk

We prove weighted-$L^\infty$ and pointwise space-time decay estimates for weak solutions of a class of wave equations with time-independent potentials and subject to initial data, both of low regularity, satisfying given decay bounds at…

Mathematical Physics · Physics 2007-08-10 Nikodem Szpak

Motivated by the study of resolvent estimates in the presence of trapping, we prove a semiclassical propagation theorem in a neighborhood of a compact invariant subset of the bicharacteristic flow which is isolated in a suitable sense.…

Analysis of PDEs · Mathematics 2013-08-28 Kiril Datchev , András Vasy

We consider a class of pseudodifferential operators with a doubly characteristic point, where the quadratic part of the symbol fails to be elliptic but obeys an averaging assumption. Under suitable additional assumptions, semiclassical…

Analysis of PDEs · Mathematics 2016-07-14 Joe Viola

We study some accurate semiclassical resolvent estimates for operators that are neither selfadjoint nor elliptic, and applications to the Cauchy problem. In particular we get a precise description of the spectrum near the imaginary axis and…

Spectral Theory · Mathematics 2007-05-23 Frederic Herau , Johannes Sjoestrand , Christiaan C. Stolk

In this paper, we define and study semi-classical analysis and semi-classical limits on compact nil-manifolds. As an application, we obtain properties of quantum limits for sub-Laplacians in this context, and more generally for positive…

Spectral Theory · Mathematics 2025-04-23 Veronique Fischer

We prove a priori estimates in $L_\infty$ for a class of quasilinear stochastic partial differential equations. The estimates are obtained independently of the ellipticity constant $\varepsilon$ and thus imply analogous estimates for…

Probability · Mathematics 2020-06-17 Konstantinos Dareiotis , Benjamin Gess