Results 51 to 60 of about 204,914 (324)

Some stochastic inequalities for weighted sums

, 2011
We compare weighted sums of i.i.d. positive random variables according to the usual stochastic order. The main inequalities are derived using majorization techniques under certain log-concavity assumptions. Specifically, let $Y_i$ be i.i.d.
Yu, Yaming
core   +1 more source

Two-weight dyadic Hardy inequalities

Rendiconti Lincei, Matematica e Applicazioni, 2023
We present various results concerning the two-weight Hardy inequality on infinite trees. Our main aim is to survey known characterizations (and proofs) for trace measures, as well as to provide some new ones. Also for some of the known characterizations we provide here new proofs.
Arcozzi N., Chalmoukis N., Levi M., Mozolyako P.   +3 more
openaire   +4 more sources

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source

Two weighted inequalities for B-fractional integrals

Journal of Inequalities and Applications, 2016
In this paper we prove a two weighted inequality for Riesz potentials I α , γ f $I_{\alpha,\gamma} f$ (B-fractional integrals) associated with the Laplace-Bessel differential operator Δ B = ∑ i = 1 n ∂ 2 ∂ x i 2 + ∑ j = 1 k γ j x j ∂ ∂ x j $\Delta_{B ...
Ahmet Eroglu, Mubariz G Hajibayov, Ayhan Serbetci   +2 more
doaj   +1 more source

Weighted Inequality

Journal of the Institute of Engineering, 2014
 In this paper, we define Ap weights, briefly discuss the theory of weighted inequalities and its application and importance in various fields. We then prove that for an Ap weight function w and for some , the function, min(w, k) is an Ap weight function.
openaire   +2 more sources

An Increasing Misalignment Between Crop Distribution and Environmental Resources Under Climate Change in China

Advanced Science, EarlyView.
Climate change reshapes the spatial alignment between crop production and environmental resources. Using multi‐source data and a crop model, integrated climatic, water, and soil endowments for maize and wheat are quantified and compared with harvest distributions.
Zheng'e Su, Zhentao Zhang, Jin Zhao, Xia Liang, Chuang Zhao, Zhijuan Liu, Minghao Zhuang, Jing Sun, Bo Lu, Ke Liu, Johannes W. M. Pullens, Matthew T. Harrison, Deli Chen, Xiaoguang Yang   +13 more
wiley   +1 more source

Comprehensive Weighted Newton Inequalities for Broad Function Classes via Generalized Proportional Fractional Operators

Axioms
In this work, weighted Newton-type inequalities (WN-TI) for multiple classes of functions by employing generalized proportional fractional (GPF) integrals are established.
Mohamed A. Barakat
doaj   +1 more source

Weighted norm inequalities for fractional operators]

, 2008
We prove weighted norm inequalities for fractional powers of elliptic operators together with their commutators with BMO functions, encompassing what is known for the classical Riesz potentials and elliptic operators with Gaussian domination by the ...
Auscher, Pascal, Martell, José Maria
core   +1 more source

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

A Bakry-Émery criterion for weighted contractivity and $L^2$-Hardy inequalities [PDF]

, 2022
Yaozhong W. Qiu
openalex   +1 more source