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The classical A. Markov inequality establishes a relation between the maximum modulus or the $L^{\infty}\left([-1,1]\right)$ norm of a polynomial $Q_{n}$ and of its derivative: $\|Q'_{n}\|\leqslant M_{n} n^{2}\|Q_{n}\|$, where the constant…

经典分析与常微分方程 · 数学 2014-05-02 A. I. Aptekarev , A. Draux , V. A. Kalyagin , D. N. Tulyakov

We prove a few interesting inequalities for Lorentz polynomials including Nikolskii-type inequalities. A highlight of the paper is a sharp Markov-type inequality for polynomials of degree at most n with real coefficients and with derivative…

经典分析与常微分方程 · 数学 2014-06-12 Tamas Erdelyi

The possibility of a frame-induced violation of Lorentz invariance due to non-inertial spin-1/2 particle motion is explored in detail for muon decay while in orbit near the event horizon of a microscopic Kerr black hole. It is explicitly…

高能物理 - 理论 · 物理学 2010-11-19 Dinesh Singh , Nader Mobed

We provide a proof of the sharp log-Sobolev inequality on a compact interval.

泛函分析 · 数学 2016-01-20 Whan Ghang , Zane Martin , Steven Waruhiu

We find the nodes that minimise divided differences and use them to find the sharp constant in a sublevel set estimate. We also find the sharp constant in the first instance of the van der Corput Lemma using a complex mean value theorem for…

经典分析与常微分方程 · 数学 2025-10-20 Keith Rogers

Functions that satisfy the Hadamard Fisher Inequalities also satisfy Newton's Inequalities

组合数学 · 数学 2010-06-15 Gernot Michael Engel

Hyperfinite knots, or limits of equivalence classes of knots induced by a knot invariant taking values in a metric space, were introduced in a previous article by the author. In this article, we present new examples of hyperfinite knots…

几何拓扑 · 数学 2009-11-13 Pedro Lopes

We establish a sharp Adams-type inequality in higher-order function spaces with singular weights on $\mathbb{R}^n$. A sharp singular concentration-compactness principle, improving Lions' result, is also proved. The study distinguishes…

偏微分方程分析 · 数学 2026-01-13 Deepak Kumar Mahanta , Tuhina Mukherjee , Abhishek Sarkar

We prove a one-dimensional Hardy inequality on the halfline with sharp constant, which improves the classical form of this inequality. As a consequence of this new inequality we can rederive known doubly weighted Hardy inequalities. Our…

偏微分方程分析 · 数学 2022-04-05 Rupert L. Frank , Ari Laptev , Timo Weidl

Based on a weak convergence argument, we provide a necessary and sufficient condition that guarantees that a nonnegative local martingale is indeed a martingale. Typically, conditions of this sort are expressed in terms of integrability…

概率论 · 数学 2014-04-24 Jose Blanchet , Johannes Ruf

An oriented closed connected N-manifold M is inflexible if it does not admit self-maps of unbounded degree. In addition, if all the maps from any other oriented closed connected N-manifold have bounded degree, then M is said to be strongly…

几何拓扑 · 数学 2022-02-08 Cristina Costoya , Vicente Muñoz , Antonio Viruel

We study the $\mathbb{CP}^2$-slicing number of knots, i.e. the smallest $m\geq 0$ such that a knot $K\subseteq S^3$ bounds a properly embedded, null-homologous disk in a punctured connected sum $(\#^m\mathbb{CP}^2)^{\times}$. We give a…

几何拓扑 · 数学 2025-04-08 Alexandra Kjuchukova , Allison N. Miller , Arunima Ray , Sümeyra Sakallı

In a recent paper, McMullen showed an inequality between the Thurston norm and the Alexander norm of a 3-manifold. This generalizes the well-known fact that twice the genus of a knot is bounded from below by the degree of the Alexander…

几何拓扑 · 数学 2014-10-01 Oliver T. Dasbach , Brian S. Mangum

In 2013, Adams introduced the $n$-crossing number of a knot $K$, denoted by $c_n(K)$. Inequalities between the $2$-, $3$-, $4$-, and $5$-crossing numbers have been previously established. We prove $c_9(K)\leq c_3(K)-2$ for all knots $K$…

几何拓扑 · 数学 2023-10-18 Nicholas Hagedorn

We consider interpolation inequalities for imbeddings of the $l^2$-sequence spaces over $d$-dimensional lattices into the $l^\infty_0$ spaces written as interpolation inequality between the $l^2$-norm of a sequence and its difference. A…

偏微分方程分析 · 数学 2014-07-03 Alexei Ilyin , Ari Laptev , Sergey Zelik

Across machine learning (ML) sub-disciplines, researchers make explicit mathematical assumptions in order to facilitate proof-writing. We note that, specifically in the area of fairness-accuracy trade-off optimization scholarship, similar…

计算机与社会 · 计算机科学 2021-09-09 A. Feder Cooper , Ellen Abrams

We consider the small mass asymptotics (Smoluchowski-Kramers approximation) for the Langevin equation with a variable friction coefficient. The limit of the solution in the classical sense does not exist in this case. We study a…

概率论 · 数学 2012-08-31 Mark Freidlin , Wenqing Hu

In this paper, by using a general result on the monotonicity of quotients of power series, our aim is to prove some monotonicity and convexity results for the modified Struve functions. Moreover, as consequences of the above mentioned…

经典分析与常微分方程 · 数学 2014-10-15 Árpád Baricz , Tibor K. Pogány

In this note, we prove a lower bound for the positive kinkiness of a closed braid which we then use to derive an estimate for the positive kinkiness of a link in terms of its Seifert system. As an application, we show that certain pretzel…

几何拓扑 · 数学 2007-05-23 Christian Bohr

In this paper, we establish strong holomorphic Morse inequalities on non-compact manifolds under the condition of optimal fundamental estimates. We show that optimal fundamental estimates are satisfied and then strong holomorphic Morse…

复变函数 · 数学 2024-09-27 Manli Liu , Guokuan Shao , Wenxuan Wang