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Related papers: Equality in Wielandt's eigenvalue inequality

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We provide necessary and sufficient conditions for the partial transposition of bipartite harmonic quantum states to be nonnegative. The conditions are formulated as an infinite series of inequalities for the moments of the state under…

Quantum Physics · Physics 2009-11-11 E. Shchukin , W. Vogel

We prove Burkholder inequality using Bregman divergence.

Probability · Mathematics 2022-04-15 Krzysztof Bogdan , Mateusz Więcek

We settle the case of equality for the relative isoperimetric inequality outside any arbitrary convex set with not empty interior.

Differential Geometry · Mathematics 2021-04-01 Nicola Fusco , Massimiliano Morini

In this paper we prove a Lyapunov type inequality for quasilinear problems with indefinite weights. We show that the first eigenvalue is bounded below in terms of the integral of the weight, instead of the integral of its positive part. We…

Analysis of PDEs · Mathematics 2015-04-10 J. Fernández Bonder , J. P. Pinasco , A. M. Salort

This note presents a new equivalence to the Riemann Hypothesis by means of the Salem integral equation.

General Mathematics · Mathematics 2026-04-20 Benito J. González , Emilio R. Negrín

We prove some upper bounds for the Dirichlet eigenvalues of a class of fully nonlinear elliptic equations, namely the Hessian equations

Analysis of PDEs · Mathematics 2014-01-28 Francesco Della Pietra , Nunzia Gavitone

We prove Ehrhard's inequality using interpolation along the Ornstein-Uhlenbeck semi-group. We also provide an improved Jensen inequality for Gaussian variables that might be of independent interest.

Probability · Mathematics 2016-05-25 Joe Neeman , Grigoris Paouris

In this paper, we consider a problem for the first order Dirac differential equations system with spectral parameter dependent in boundary condition. The asymptotic behaviors of eigenvalues, eigenfunctions and normalizing numbers of this…

Spectral Theory · Mathematics 2014-04-02 Kh. R. Mamedov , O. Akcay

The method of using rearrangements to give sufficient conditions for Fourier inequalities between weighted Lebesgue spaces is revisited. New results in the case q < p are established and a comparison between two known sufficient conditions…

Functional Analysis · Mathematics 2022-01-20 Javad Rastegari , Gord Sinnamon

This article is a follow-up to arXiv:2304.04373. We establish necessary and sufficient conditions for weighted Orlicz-Poincar\'e inequalities in product spaces. These results follow the work of Chua and Wheeden, who established similar…

Functional Analysis · Mathematics 2025-05-22 Lucas Yong

In this work, the q-analogue of Bernoulli inequality is proved. Some other related results are presented.

Classical Analysis and ODEs · Mathematics 2018-03-28 Mohammad W. Alomari

In the present paper we establish some new integral inequalities analogous to the well known Hadamard inequality by using a fairly elementary analysis.

Classical Analysis and ODEs · Mathematics 2012-01-16 Mevlut Tunc , S. Ugur Kirmaci

This note revisits some majorization inequalities for eigenvalues, special attention is given to an elegant theorem of Hiroshima. An extension of the special case of Hiroshima's theorem is presented. Some discussion and open problems are…

Functional Analysis · Mathematics 2013-01-03 Minghua Lin

We give simple conditions on an ambient manifold that are necessary and sufficient for isoperimetric inequalities (for submanifolds) to hold.

Differential Geometry · Mathematics 2010-06-04 Brian White

The paper establishes the equality condition in the I-MMSE proof of the entropy power inequality (EPI). This is done by establishing an exact expression for the deficit between the two sides of the EPI. Interestingly, a necessary condition…

Information Theory · Computer Science 2017-03-23 Alex Dytso , Ronit Bustin , H. Vincent Poor , Shlomo Shamai

We consider the eigenvalue problem for the Schr\"odinger operator on bounded, convex domains with mixed boundary conditions, where a Dirichlet boundary condition is imposed on a part of the boundary and a Neumann boundary condition on its…

Spectral Theory · Mathematics 2024-09-04 Nausica Aldeghi

In this article, we show the necessary and sufficient conditions for the inequality $\|u\|_{L_t^qL_x^r}\lesssim \|u\|_{X^{s,b}}$, where $$\|u\|_{X^{s,b}}:=\|\hat{u}(\tau,\xi)\langle \xi\rangle^s\langle \tau-\xi^3\rangle^b…

Analysis of PDEs · Mathematics 2025-08-26 Jie Chen , Fan Gu , Boling Guo

We give conditions characterizing equality in the Minkowski inequality for big divisors on a projective variety. Our results draw on the extensive history of research on Minkowski inequalities in algebraic geometry.

Algebraic Geometry · Mathematics 2021-07-20 Steven Dale Cutkosky

The purpose of this paper is to derive the Hoffman-Wielandt inequality and its generalization for quaternion matrices. Diagonalizability of the block companion matrix of certain quadratic (linear) quaternion matrix polynomials is brought…

Spectral Theory · Mathematics 2025-10-13 Pallavi Basavaraju , Shrinath Hadimani , Sachindranath Jayaraman

We improve constants in the Rademacher-Menchov inequality.

Probability · Mathematics 2007-05-23 Witold Bednorz