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关于一个含参量的Hilbert型积分不等式 总被引:2,自引:1,他引:1
杨必成 《纯粹数学与应用数学》2008,24(3)
通过估算权函数及引入Beta函数,建立一个含参量的、具有最佳常数因子的Hilbert型积分不等式.同时建立它的两种最佳推广式及相应的等价形式. 相似文献
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关于一个推广的具有最佳常数因子的Hilbert类不等式及其应用 总被引:9,自引:0,他引:9
本文引入单参数λ,对一个Hilbert类不等式作具有最佳常数因子的推广.作为应用,建立它的等价形式并获得了一些特殊结果. 相似文献
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通过引入一个形如x1 x(x∈[0, ∞))的幂指函数建立了带权的Hardy-Hilbert积分不等式的新推广.并证明了系数(2)(sinπp)是最佳值.作为应用,给出了Hardy-Littlewood积分不等式的一个推广. 相似文献
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杨必成 《数学的实践与认识》2006,36(11):207-212
通过建立弱条件下的Eu ler-M aclaurin求和公式的余项估值式,精确估算权系数,给出一个逆向的H ardy-H ilbert型不等式.作为应用,考虑了它的加强式及等价形式. 相似文献
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联系投影不等式Petty猜想的Lp-形式的不等式 总被引:1,自引:0,他引:1
在凸体理论中,投影不等式的Petty猜想是一个著名的公开问题.首先通过利用Lp-混合体积和Lp-对偶混合体积的概念、Lp-投影体和几何体Γ_pK的关系、Bourgain-Milman不等式和Lp-Busemann-Petty不等式,建立了一个联系投影不等式Petty猜想的Lp-形式的不等式.继而对于每一个关于原点对称的凸体,应用Jensen不等式和几何体Γ_pK的单调性,分别给出了投影不等式Petty猜想的Lp-形式的一个逆向不等式和Lp-Petty投影不等式的一个逆向不等式. 相似文献
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在本篇短文中,我们将利用Young不等式建立一个代数不等式,所给的证明是十分简洁的.并且我们将看到这个代数不等式是著名的Abel不等式和H(o)lder不等式的一个共同加强. 相似文献
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In this paper, we establish several new Hilbert-type inequalities with a homogeneous kernel, involving arithmetic, geometric, and harmonic mean operators in both integral and discrete case. Such inequalities are derived by virtue of some recent results regarding general Hilbert-type inequalities and some well-known classical inequalities. We also prove that the constant factors appearing in established inequalities are the best possible. As an application, we consider some particular settings and compare our results with previously known from the literature. 相似文献
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一个对偶的Hardy-Hilbert不等式及其推广 总被引:5,自引:0,他引:5
本文给出一个对偶的具有最佳常数因子的Hardy-Hilbert不等式,它是Hilbert不等式的具有(p,q)-参数形式的新推广,还考虑了它的更为推广的单参数形式及一个等价不等式。 相似文献
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Masatoshi Fujii Ritsuo Nakamoto 《Proceedings of the American Mathematical Society》2000,128(1):223-228
We give an extension of Lin's recent improvement of a generalized Schwarz inequality, which is based on the Heinz-Kato-Furuta inequality. As a consequence, we can sharpen the Heinz-Kato-Furuta inequality.
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Fethi SOLTANI 《数学研究及应用》2022,42(1):8-14
In this work,we prove Clarkson-type and Nash-type inequalities for the Laguerre transform■on M=[0,∞)×R.By combining these inequalities,we show Laeng-Morpurgo-type uncertainty inequalities.We establish also a local-type uncertainty inequalities for the Laguerre transform■,and we deduce a Heisenberg-Pauli-Weyl-type inequality for this transform. 相似文献
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Peng Gao 《Proceedings of the American Mathematical Society》2005,133(7):1977-1984
We use a theorem of Cartlidge and the technique of Redheffer's ``recurrent inequalities" to give some results on inequalities related to Hardy's inequality.
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本文论证了龙顺潮、王键建立的φ形式的Khintchine 不等式不成立,他们的不等式如下:φ- 1 ∑n1φ(|aj|) ≤C 12n ∑ε1…∑εn|ε1a1+ …+ εnan|,其中φ(x)为满足φ(a+ b)≥φ(a)+ φ(b) (a,b≥0),其反函数φ- 1(x)单调增加的函数,C为常数,εi= ±1,∑ε1…∑εn对所有(ε1…εn)取值,a1,…,an 为任意复数. 相似文献
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Chia Shiang Lin 《数学学报(英文版)》2001,17(4):657-668
In this paper we initiate a study of covariance and variance for two operators on a Hilbert space, proving that the c-v (covariance-variance)
inequality holds, which is equivalent to the Cauchy-Schwarz inequality. As for applications of the c-v inequality we prove
uniformly the Bernstein-type inequalities and equalities, and show the generalized Heinz-Kato-Furuta-type inequalities and
equalities, from which a generalization and sharpening of Reid's inequality is obtained. We show that every operator can be
expressed as a p-hyponormal-type, and a hyponormal-type operator. Finally, some new characterizations of the Furuta inequality are given.
Received April 9, 2000, Revised July 20, 2000, Accepted August 8, 2000 相似文献
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Feng-Yu Wang 《Potential Analysis》2008,28(4):321-334
For μ: = e
V(x)dx a probability measure on a complete connected Riemannian manifold, we establish a correspondence between the Entropy-Information
inequality and the transportation-cost inequality for μ(f
2) = 1, where Φ and Ψ are increasing functions. Moreover, under the curvature–dimension condition, a Sobolev type HWI (entropy-cost-information)
inequality is established. As applications, explicit estimates are obtained for the Sobolev constant and the diameter of a
compact manifold, which either extend or improve some corresponding known results.
Supported in part by NNSFC(10721091) and the 973-project in China. 相似文献
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《Journal of the Egyptian Mathematical Society》2014,22(2):254-257
In this paper, we introduce two new forms of the half-discrete Hilbert inequality. The first form is a sharper form of the half-discrete Hilbert inequality and is related to Hardy inequality. In the second one, we give a differential form of this inequality. 相似文献