English
Related papers

Related papers: On the Schrodinger maximal function in higher dime…

200 papers

Maximal estimates for Schr\"odinger means and convergence almost everywhere of sequences of Schr\"odinger means are studied.

Functional Analysis · Mathematics 2020-11-17 Per Sjölin , Jan-Olov Strömberg

We study integral estimates of maximal functions for Schr\"odinger means.

Analysis of PDEs · Mathematics 2019-06-06 Per Sjölin , Jan-Olov Strömberg

This note presents a new proof of the well-known Strichartz estimates for the Schr\"odinger equation in $2+1$ dimensions, building on ideas from our recent work \cite{MO}.

Classical Analysis and ODEs · Mathematics 2023-02-23 Camil Muscalu , Itamar Oliveira

The Schrodinger equations which are exactly solvable in terms of associated special functions are directly related to some self-adjoint operators defined in the theory of hypergeometric type equations. The fundamental formulae occurring in…

Quantum Physics · Physics 2007-05-23 Nicolae Cotfas

We give new lower bounds for $L^p$ estimates of the Schr\"odinger maximal function by generalizing an example of Bourgain.

Classical Analysis and ODEs · Mathematics 2020-09-03 Xiumin Du , Jongchon Kim , Hong Wang , Ruixiang Zhang

We obtain exact solutions of the one-dimensional Schrodinger equation for some families of associated Lame potentials with arbitrary energy through a suitable ansatz, which may be appropriately extended for other such a families. The…

Quantum Physics · Physics 2007-05-23 David J Fernandez C , Asish Ganguly

Multiparameter maximal estimates are considered for operators of Schr\"odinger type. Sharp and almost sharp results, that extend work by Rogers and Villarroya, are obtained. We provide new estimates via the integrability of the kernel which…

Analysis of PDEs · Mathematics 2013-05-15 Per Sjölin , Fernando Soria

Almost everywhere convergence on the solution of Schr\"odinger equation is an important problem raised by Carleson in harmonic analysis. In recent years, this problem was essentially solved by building the sharp $L^p$-estimate of…

Analysis of PDEs · Mathematics 2023-12-12 Zhenbin Cao , Changxing Miao , Meng Wang

Localization properties for Schr\"odinger means are studied in dimension higher than one.

Classical Analysis and ODEs · Mathematics 2017-04-05 Per Sjölin

We survey old and new conjectures and results on various types of spherical maximal functions, emphasizing problems with a fractal dilation set.

Classical Analysis and ODEs · Mathematics 2026-05-12 Joris Roos , Andreas Seeger

A multivariable version of the strong maximal function is introduced and a sharp distributional estimate for this operator in the spirit of the Jessen, Marcinkiewicz, and Zygmund theorem is obtained. Conditions that characterize the…

Classical Analysis and ODEs · Mathematics 2011-03-10 Loukas Grafakos , Liguang Liu , Carlos Perez , Rodolfo H. Torres

In this paper, we first show that there exists a maximizer for the non-endpoint Strichartz inequalities for the Schr\"odinger equation in all dimensions based on the recent linear profile decomposition results. We then present a new proof…

Analysis of PDEs · Mathematics 2008-10-12 Shuanglin Shao

Using Guth's polynomial partitioning method, we obtain $L^p$ estimates for the maximal function associated to the solution of Schr\"odinger equation in $\mathbb R^2$. The $L^p$ estimates can be used to recover the previous best known result…

Classical Analysis and ODEs · Mathematics 2016-11-10 Xiumin Du , Xiaochun Li

It is shown that control of the Schrodinger maximal functions $\sup_{0<t<1}|e^{it\Delta} f|$ for $f\in H^s(\mathbb R^n)$ requires $s\geq \frac n{2(n+1)}$

Number Theory · Mathematics 2016-09-20 Jean Bourgain

The concept of the elegant work introduced by Levai in Ref. [5] is extended for the solutions of the Schrodinger equation with more realistic other potentials used in different disciplines of physics. The connection between the present…

Mathematical Physics · Physics 2011-10-19 M. Capak , Y. Cancelik , O. L. Unsal , S. Atay , B. Gonul

We obtain $L^p$ estimates of the maximal Schr\"odinger operator in $\mathbb R^n$ using polynomial partitioning, bilinear refined Strichartz estimates, and weighted restriction estimates.

Classical Analysis and ODEs · Mathematics 2024-11-08 Xiumin Du , Jianhui Li

We extend the local well-posedness theory for the Cauchy problem associated to a degenerated Zakharov system. The new main ingredients are the derivation of Strichartz and maximal function norm estimates for the linear solution of a…

Analysis of PDEs · Mathematics 2013-12-10 Vanessa Barros , Felipe Linares

An integrable extension of the well known nonlinear Schroedinger (NLS) equation to a higher space-dimension, recently proposed by us, is investigated, exploring its various important aspects. Focusing on the idea of construction its…

Exactly Solvable and Integrable Systems · Physics 2013-05-20 Anjan Kundu , Abhik Mukherjee

In this paper we study sharp estimates for the Schr\"odinger operator via the framework of orthogonal polynomials. We use spherical harmonics and Gegenbauer polynomials to prove a new weighted inequality for the Schr\"odinger equation that…

Classical Analysis and ODEs · Mathematics 2017-08-28 Felipe Gonçalves

For the one-dimensional Schr\"odinger equation, we obtain sharp maximal-in-time and maximal-in-space estimates for systems of orthonormal initial data. The maximal-in-time estimates generalize a classical result of Kenig--Ponce--Vega and…

Analysis of PDEs · Mathematics 2019-09-16 Neal Bez , Sanghyuk Lee , Shohei Nakamura
‹ Prev 1 2 3 10 Next ›