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In these notes, we present versions of trace theorems for Sobolev spaces over an interval in the real line, and also a one-dimensional version of the well-known Poincare inequality.

The purpose of this paper is two-fold: we present some matrix inequalities of log-majorization type for eigenvalues indexed by a sequence; we then apply our main theorem to generalize and improve the Hua-Marcus' inequalities. Our results…

Functional Analysis · Mathematics 2021-03-11 Bo-Yan Xi , Fuzhen Zhang

Preliminary results from Nathanson [5] are used to prove the Muirhead and Rado inequalities.

Combinatorics · Mathematics 2025-03-03 Melvyn B. Nathanson

The aim of this article is to give some improvements of Jordan-Steckin and Becker-Stark inequalities discussed in [1].

Classical Analysis and ODEs · Mathematics 2018-02-28 Marija Nenezic , Ling Zhu

In this paper, we establish the sharp critical and subcritical trace Trudinger-Moser and Adams inequalities on the half spaces and prove the existence of their extremals through the method based on the Fourier rearrangement, harmonic…

Analysis of PDEs · Mathematics 2021-08-11 Lu Chen , Guozhen Lu , Qiaohua Yang , Maochun Zhu

The notion of fractional minimal rank of a partial matrix is introduced, a quantity that lies between the triangular minimal rank and the minimal rank of a partial matrix. The fractional minimal rank of partial matrices whose bipartite…

Functional Analysis · Mathematics 2017-10-23 Ben W. Grossmann , Hugo J. Woerdeman

We prove several Sobolev inequalities, which are then used to establish a fractional Hardy-Sobolev- Maz'ya inequality on the upper halfspace.

Functional Analysis · Mathematics 2015-03-17 Craig A. Sloane

We determine when a matrix is similar to a partial isometry, refining a result of Halmos--McLaughlin.

Functional Analysis · Mathematics 2021-02-05 Stephan Ramon Garcia , David Sherman

We study convexity or concavity of certain trace functions for the deformed logarithmic and exponential functions, and obtain in this way new trace inequalities for deformed exponentials that may be considered as generalizations of…

Mathematical Physics · Physics 2017-08-02 Frank Hansen , Jin Liang , Guanghua Shi

We describe recent work of Kim in arXiv:1210.5190 to show that operator convex functions associated with quasi-entropies can be used to prove a large class of new matrix inequalities in the tri-partite and bi-partite setting by taking a…

Quantum Physics · Physics 2015-06-12 Mary Beth Ruskai

Three novel multilinear embedding estimates for the fractional Laplacian are obtained in terms of trace integrals restricted to the diagonal. The resulting sharp inequalities may be viewed as extensions of the Hardy-Littlewood-Sobolev…

Analysis of PDEs · Mathematics 2011-10-28 William Beckner

This paper derives exponential tail bounds and polynomial moment inequalities for the spectral norm deviation of a random matrix from its mean value. The argument depends on a matrix extension of Stein's method of exchangeable pairs for…

Probability · Mathematics 2013-05-06 Daniel Paulin , Lester Mackey , Joel A. Tropp

In this paper some important inequalities are revisited. First, as motivation, we give another proof of the Hardy's inequality applying convenient vector fields as introduced by Mitidieri, see [6]. Then, we investigate a particular case of…

Analysis of PDEs · Mathematics 2010-07-14 Aldo Bazan , Wladimir Neves

We give an elementary estimate that entails and generalises numerous Korn inequalities scattered in the literature. As special instances, we obtain general Korn-type inequalities involving normal or tangential trace components, or lower…

Analysis of PDEs · Mathematics 2025-10-01 Franz Gmeineder , Endre Süli , Tabea Tscherpel

In information theory, the well-known log-sum inequality is a fundamental tool which indicates the non-negativity for the relative entropy. In this article, we establish a set of inequalities which are similar to the log-sum inequality…

Functional Analysis · Mathematics 2022-11-08 Supriyo Dutta , Shigeru Furuichi

We give a simple proof of a recently result concerning Hardy $q$-inequalities.

Classical Analysis and ODEs · Mathematics 2014-12-18 Peng Gao

In this paper, we concern trace Trudinger-Moser inequalities on a compact Riemann surface with smooth boundary. This kind of inequalities were extensively studied by Osgood-Phillips-Sarnak [24], Liu [20], Li-Liu [17], Yang [31, 32] and…

Analysis of PDEs · Mathematics 2019-12-25 Mengjie Zhang

We introduce trace definability, a weak notion of interpretability, and trace equivalence, a weak notion of equivalence for first order structures and theories. In particular we get an interesting weak equivalence notion for $\mathrm{NIP}$…

Logic · Mathematics 2022-04-07 Erik Walsberg

Hadamard's determinant inequality was refined and generalized by Zhang and Yang in [Acta Math. Appl. Sinica 20 (1997) 269-274]. Some special cases of the result were rediscovered recently by Rozanski, Witula and Hetmaniok in [Linear Algebra…

Functional Analysis · Mathematics 2020-08-11 Minghua Lin , Gord Sinnamon

We prove some extensions of Andrews inequality.

Differential Geometry · Mathematics 2020-11-02 Hao Fang , Biao Ma , Wei Wei