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Related papers: The Lieb-Thirring inequality revisited

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We show that the absolute values of non-positive eigenvalues of Schr\"odinger operators with complex potentials can be bounded in terms of L_p-norms of the potential. This extends an inequality of Abramov, Aslanyan, and Davies to higher…

Spectral Theory · Mathematics 2014-02-26 Rupert L. Frank

We provide lower bounds for the sum of the negative eigenvalues of the operator $|\sigma\cdot p_A|^{2s} - C_s/|x|^{2s} + V$ in three dimensions, where $s\in (0, 1]$, covering the interesting physical cases $s = 1$ and $s = 1/2$. Here…

Mathematical Physics · Physics 2018-08-15 Gonzalo A. Bley , Søren Fournais

We present new bounds for the Berezin number inequalities which improve on the existing bounds. We also obtain bounds for the Berezin norm of operators as well as the sum of two operators.

Functional Analysis · Mathematics 2022-02-09 Pintu Bhunia , Anirban Sen , Kallol Paul

For relatively form-compact perturbations of non-negative selfadjoint operators, we obtain an upper bound on the number of discrete eigenvalues in half-planes separated from the positive real axis. The bound is given in terms of a partial…

Spectral Theory · Mathematics 2026-03-25 Sabine Bögli , Sukrid Petpradittha

Inequalities are derived for sums and quotients of eigenvalues of magnetic Schroedinger operators with non-negative electric potentials in domains. The bounds reflect the correct order of growth in the semi-classical limit.

Spectral Theory · Mathematics 2007-05-29 Rupert L. Frank , Ari Laptev , Stanislav Molchanov

We establish the existence of finite-rank operators for an interpolation version of the Lieb--Thirring inequality in the mass--supercritical case, thereby extending a result of Hong, Kwon, and Yoon in 2019 to the full parameter regime. Our…

Mathematical Physics · Physics 2025-10-29 Giao Ky Duong , Thi Minh Thao Le , Phan Thành Nam , Phuoc-Tai Nguyen

We improve constants in the Rademacher-Menchov inequality.

Probability · Mathematics 2007-05-23 Witold Bednorz

We prove a lower bound for the number of negative eigenvalues for a Schr\"{o}dinger operator on a Riemannian manifold via the integral of the potential.

Differential Geometry · Mathematics 2014-06-03 Alexander Grigor'yan , Nikolai Nadirashvili , Yannick Sire

A new and elementary proof of a recent result of Laptev and Weidl is given. It is a sharp Lieb-Thirring inequality for one dimensional Schroedinger operators with matrix valued potentials.

Mathematical Physics · Physics 2007-05-23 Rafael Benguria , Michael Loss

We give an improvement of sharp Berezin type bounds on the Riesz means $\sum_k(\Lambda-\lambda_k)_+^\sigma$ of the eigenvalues $\lambda_k$ of the Dirichlet Laplacian in a domain if $\sigma\geq 3/2$. It contains a correction term of the…

Spectral Theory · Mathematics 2007-12-03 Timo Weidl

We prove a certain upper bound for the number of negative eigenvalues of the Schr\"{o}dinger operator on the plane.

Analysis of PDEs · Mathematics 2012-04-20 Alexander Grigor'yan , Nikolai Nadirashvili

We establish Lieb-Thirring type inequalities for non self-adjoint relatively compact perturbations of certain operators of mathematical physics. We apply our results to quantum Hamiltonians of Schr{\"o}dinger and Pauli with constant…

Mathematical Physics · Physics 2016-03-16 Diomba Sambou

We obtain a new bound on the location of eigenvalues for a non-self-adjoint Schr\"odinger operator with complex-valued potentials by obtaining a weighted $L^2$ estimate for the resolvent of the Laplacian.

Analysis of PDEs · Mathematics 2018-10-09 Yoonjung Lee , Ihyeok Seo

Several recent papers have focused their attention in proving the correct analogue to the Lieb-Thirring inequalities for non self-adjoint operators and in finding bounds on the distribution of their eigenvalues in the complex plane. This…

Spectral Theory · Mathematics 2019-04-19 Lucrezia Cossetti

We explicitly solve a variational problem related to upper bounds on the optimal constants in the Cwikel--Lieb--Rozenblum (CLR) and Lieb--Thirring (LT) inequalities, which has recently been derived in [Invent. Math. 231 (2023), no.1,…

Mathematical Physics · Physics 2025-03-24 Thiago Carvalho Corso , Tobias Ried

Let $A$ and $B$ be positive semidefinite matrices. We investigate the conditions under which the Lieb-Thirring inequality can be extended to singular values. That is, for which values of $p$ does the majorisation $\sigma(B^p A^p) \prec_w…

Functional Analysis · Mathematics 2011-04-28 Koenraad M. R. Audenaert

We extend the Moser-Trudinger inequality of one function to systems of orthogonal functions. Our results are asymptotically sharp when applied to the collective behavior of eigenfunctions of Schr\"odinger operators on bounded domains.

Analysis of PDEs · Mathematics 2024-01-29 Rakesh Arora , Phan Thành Nam , Phuoc-Tai Nguyen

We review some recent progress on Lieb-Thirring inequalities, focusing on direct methods to kinetic estimates for orthonormal functions and applications for many-body quantum systems.

Mathematical Physics · Physics 2021-06-29 Phan Thành Nam

This paper considers Lieb-Thirring inequalities for higher order differential operators. A result for general fourth-order operators on the half-line is developed, and the trace inequality tr((-Delta)^2 - C^{HR}_{d,2} / (|x|^4) -…

Spectral Theory · Mathematics 2009-01-11 Tomas Ekholm , Andreas Enblom

We discuss the asymptotic behaviour for the best constant in L^p-L^q estimates for trigonometric polinomials and for an integral operator which is related to the solution of inhomogeneous Schrodinger equations. This gives us an opportunity…

Analysis of PDEs · Mathematics 2007-05-23 Damiano Foschi
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