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AN IMPROVED HARDY'S INEQUALITY
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作者 Assal MILOUD Rahmouni ATEF 《Acta Mathematica Scientia》 SCIE CSCD 2013年第5期1382-1386,共5页
In this paper we shall extend Hardy's inequality associated with Fourier trans- form to the strip n(2-p) ≤σ〈 n+p(N+ 1) where N = [n(1/p- 1)], the greatest integer not exceeding n(1/p - 1).
关键词 hardy's space hardy's inequality
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NEW WEIGHTED MULTILINEAR OPERATORS AND COMMUTATORS OF HARDY-CESàRO TYPE 被引量:2
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作者 Ha Duy HUNG Luong Dang KY 《Acta Mathematica Scientia》 SCIE CSCD 2015年第6期1411-1425,共15页
This paper deals with a general class of weighted multilinear Hardy-Cesaro op- erators that acts on the product of Lebesgue spaces and central Morrey spaces. Their sharp bounds are also obtained. In addition, we obtai... This paper deals with a general class of weighted multilinear Hardy-Cesaro op- erators that acts on the product of Lebesgue spaces and central Morrey spaces. Their sharp bounds are also obtained. In addition, we obtain sufficient and necessary conditions on weight functions so that the commutators of these weighted multilinear Hardy-Cesaro oper- ators (with symbols in central BMO spaces) are bounded on the product of central Morrey spaces. These results extends known results on multilinear Hardy operators. 展开更多
关键词 hardy-Ces^ro operators hardy's inequality multilinear hardy operator weig-hted hardy-Littlewood averages
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GRADIENT ESTIMATES FOR SOLUTIONS TO QUASILINEAR ELLIPTIC EQUATIONS WITH CRITICAL SOBOLEV GROWTH AND HARDY POTENTIAL 被引量:2
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作者 向长林 《Acta Mathematica Scientia》 SCIE CSCD 2017年第1期58-68,共11页
This note is a continuation of the work[17].We study the following quasilinear elliptic equations- △pu-μ/|x|p |u|p-2 u=Q(x)|u|Np/N-p -2u,x∈R N,where 1 〈 p 〈 N,0 ≤ μ 〈((N-p)/p)p and Q ∈ L∞(RN).O... This note is a continuation of the work[17].We study the following quasilinear elliptic equations- △pu-μ/|x|p |u|p-2 u=Q(x)|u|Np/N-p -2u,x∈R N,where 1 〈 p 〈 N,0 ≤ μ 〈((N-p)/p)p and Q ∈ L∞(RN).Optimal asymptotic estimates on the gradient of solutions are obtained both at the origin and at the infinity. 展开更多
关键词 quasilinear elliptic equations hardy's inequality gradient estimate
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Experimentally testing Hardy's theorem on nonlocality with entangled mixed states 被引量:1
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作者 樊代和 戴茂春 +1 位作者 郭伟杰 韦联福 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第4期96-101,共6页
Hardy's theorem on nonlocality has been verified by a series of experiments with two-qubit entangled pure states.However,in this paper we demonstrate the experimental test of the theorem by using the two-photon entan... Hardy's theorem on nonlocality has been verified by a series of experiments with two-qubit entangled pure states.However,in this paper we demonstrate the experimental test of the theorem by using the two-photon entangled mixed states.We first investigate the generic logic in Hardy's proof of nonlocality,which can be applied for arbitrary two-qubit mixed polarization entangled states and can be reduced naturally to the well-known logic tested successfully by the previous pure state experiments.Then,the optimized violations of locality for various experimental parameters are delivered by the numerical method.Finally,the logic argued above for testing Hardy's theorem on nonlocality is demonstrated experimentally by using the mixed entangled-photon pairs generated via pumping two type-I BBO crystals.Our experimental results shows that Hardy's proof of nonlocality can also be verified with two-qubit polarization entangled mixed states,with a violation of about 3.4 standard deviations. 展开更多
关键词 hardy's theorem NONLOCALITY entangled mixed state spontaneous parametric down conversion sPDC)
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A HEAT KERNEL VERSION OF HARDY’S THEOREM FOR THE LAGUERRE HYPERGROUP
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作者 黄际政 刘和平 《Acta Mathematica Scientia》 SCIE CSCD 2011年第2期451-458,共8页
In this article, we prove a heat kernel version of Hardy's theorem for the Laguerre hypergroup.
关键词 Laguerre hypergroup uncertainty principle hardy's theorem
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HEAT KERNELS AND HARDY'S UNCERTAINTY PRINCIPLE ON H-TYPE GROUPS
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作者 朱赋鎏 杨乔华 《Acta Mathematica Scientia》 SCIE CSCD 2008年第1期171-178,共8页
This article obtains an explicit expression of the heat kernels on H-type groups and then follow the estimate of heat kernels to deduce the Hardy's uncertainty principle on the nilpotent Lie groups.
关键词 H-type groups heat kernel hardy's uncertainty principle
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The relation between Hardy's non-locality and violation of Bell inequality
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作者 向阳 《Chinese Physics B》 SCIE EI CAS CSCD 2011年第6期7-11,共5页
We give an analytic quantitative relation between Hardy's non-locality and Bell operator. We find that Hardy's non-locality is a sufficient condition for the violation of Bell inequality, the upper bound of Hardy's... We give an analytic quantitative relation between Hardy's non-locality and Bell operator. We find that Hardy's non-locality is a sufficient condition for the violation of Bell inequality, the upper bound of Hardy's non-locality allowed by information causality just corresponds to Tsirelson bound of Bell inequality and the upper bound of Hardy's non- locality allowed by the principle of no-signaling just corresponds to the algebraic maximum of Bell operator. Then we study the CabeUo's argument of Hardy's non-locality (a generalization of Hardy's argument) and find a similar relation between it and violation of Bell inequality. Finally, we give a simple derivation of the bound of Hardy's non-locality under the constraint of information causality with the aid of the above derived relation between Hardy's non-locality and Bell operator. 展开更多
关键词 hardy's non-locality Bell inequality information causality
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A MATHEMATICAL PROOF OF A PROBABILISTIC MODEL OF HARDY'S INEQUALITY
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作者 Prateek K 《Analysis in Theory and Applications》 2012年第1期95-100,共6页
In this paper using an argument from [1] , we prove one of the probabilistic version of Hardy's inequality.
关键词 random variables uniform partition hardy's inequality
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Some integral inequalities on time scales 被引量:1
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作者 Adnan Tuna Servet Kutukcu 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2008年第1期23-29,共7页
In this article, we study the reverse HSlder type inequality and HSlder inequality in two dimensional case on time scales. We also obtain many integral inequalities by using HSlder inequalities on time scales which gi... In this article, we study the reverse HSlder type inequality and HSlder inequality in two dimensional case on time scales. We also obtain many integral inequalities by using HSlder inequalities on time scales which give Hardy's inequalities as spacial cases. 展开更多
关键词 integral inequalities Hoelder's inequalities hardy's inequalities time scales reverse inequality
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DEGENERATE BOUNDARY LAYER SOLUTIONS TO THE GENERALIZED BENJAMIN-BONAMAHONY-BURGERS EQUATION
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作者 肖清华 陈正争 《Acta Mathematica Scientia》 SCIE CSCD 2012年第5期1743-1758,共16页
This paper is concerned with the convergence rates of the global solutions of the generalized Benjamin-Bona-Mahony-Burgers(BBM-Burgers) equation to the corresponding degenerate boundary layer solutions in the half-s... This paper is concerned with the convergence rates of the global solutions of the generalized Benjamin-Bona-Mahony-Burgers(BBM-Burgers) equation to the corresponding degenerate boundary layer solutions in the half-space.It is shown that the convergence rate is t-(α/4) as t →∞ provided that the initial perturbation lies in H α 1 for α 〈 α(q):= 3 +(2/q),where q is the degeneracy exponent of the flux function.Our analysis is based on the space-time weighted energy method combined with a Hardy type inequality with the best possible constant introduced in [1] 展开更多
关键词 generalized BBM-Burgers equation degenerate boundary layer solutions convergence rates hardy's inequality space-time weighted energy method
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Uncertainty Principles for the Generalized Fourier Transform Associated with Spherical Mean Operator
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作者 Hatem Mejjaoli Youssef Othmani 《Analysis in Theory and Applications》 2013年第4期309-332,共24页
The aim of this paper is to establish an extension of qualitative and quantitative uncertainty principles for the Fourier transform connected with the spherical mean operator.
关键词 Generalized Fourier transform hardy's type theorem Cowling-Price's theorem Beurling's theorem Miyachi's theorem Donoho-stark's uncertainty principle.
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Atomic decompositions and Hardy's inequality on weak Hardy-Morrey spaces 被引量:2
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作者 HO Kwok-Pun 《Science China Mathematics》 SCIE CSCD 2017年第3期449-468,共20页
We introduce the weak Hardy-Morrey spaces in this paper.We also obtain the atomic decompositions of the weak Hardy-Morrey spaces.By using these decompositions,we establish the Hardy inequalities on the weak Hardy-Morr... We introduce the weak Hardy-Morrey spaces in this paper.We also obtain the atomic decompositions of the weak Hardy-Morrey spaces.By using these decompositions,we establish the Hardy inequalities on the weak Hardy-Morrey spaces. 展开更多
关键词 hardy spaces Morrey spaces weak Lebesgue spaces atomic decompositions hardy's inequality
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Experimentally testing Bell's theorem based on Hardy's nonlocal ladder proofs 被引量:2
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作者 GUO WeiJie FAN DaiHe WEI LianFu 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2015年第2期21-25,共5页
Bell's theorem argues the existence of quantum nonlocality which goes basically against the hidden variable theory (HVT). Many experiments have been done via testing the violations of Bell's inequalities to statis... Bell's theorem argues the existence of quantum nonlocality which goes basically against the hidden variable theory (HVT). Many experiments have been done via testing the violations of Bell's inequalities to statistically verify the Bell's theorem. Alternatively, by testing the Hardy's ladder proofs we experimentally demonstrate the deterministic violation of HVT and thus confirm the quantum nonlocality. Our tests are implemented with non-maximal entangled photon pairs generated by spontaneous parametric down conversions (SPDCs). We show that the degree freedom of photon entanglement could be significantly enhanced by using interference filters. As a consequence, the Hardy's ladder proofs could be tested and Bell's theorem is verified robustly. The probability of violating the locality reach to 41.9%, which is close to the expectably ideal value 46.4% for the photon pairs with degree of entanglement e = 0.93. The higher violating probability is possible by further optimizing the experimental parameters. 展开更多
关键词 quantum nonlocality entanglement production hardy's proof
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On a New Reverse Extended Hardy’s Integral Inequality
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作者 Bi Cheng YANG 《Journal of Mathematical Research and Exposition》 CSCD 2011年第3期474-478,共5页
In this paper,a new reverse extended Hardy's integral inequality is proved by means of weight coefficients and the technique of real analysis.Some particular results are considered.
关键词 hardy's integral inequality weight function Hlder's inequality.
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Hrmander Type Theorem for Fourier Multipliers with Optimal Smoothness on Hardy Spaces of Arbitrary Number of Parameters 被引量:2
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作者 Jiao CHEN 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2017年第8期1083-1106,共24页
The main purpose of this paper is to establish the HSrmander-Mihlin type theorem for Fourier multipliers with optimal smoothness on k-parameter Hardy Spaces for k≥ 3 using the multi- parameter Littlewood-Paley theory... The main purpose of this paper is to establish the HSrmander-Mihlin type theorem for Fourier multipliers with optimal smoothness on k-parameter Hardy Spaces for k≥ 3 using the multi- parameter Littlewood-Paley theory. For the sake of convenience and simplicity, we only consider the case k 3, and the method works for all the cases k ≥ 3: Tmf(x1,x2,x3) =1/((2π)+n1+n2+n3) ∫ R n1×R n2×R n3 m(ξ)f(ξ)e 2π ix.ξ dξ. where x = (x1,x2,x3) ∈ Rn1 × Rn2 × R n3 and ξ = (ξ1,ξ2,ξ3) ∈ R n1 × Rn2 ×R n3. One of our main results is the following: Assume that m(ξ) is a function on Rn1+n2+n3 satisfying sup j,k,l ∈Z ||mj,k,l|| W(s1,s2,s3)〈∞ with si 〉 ni(1/p-1/2) for 1 ≤ i ≤ 3. Then Tm is bounded from HP(R n1 × R n2 ×R n3) to HP(R n1 ×R n2 × R n3) for all 0 〈 p ≤ 1 and ||Tm|| Hp→Hp≤ sup j,k,l∈Z ||mj,k,l|| W(s1,s2,s3) Moreover, the smoothness assumption on sl for 1 ≤ i ≤ 3 is optimal. Here we have used the notations mj,k,l (ξ)= m(2 j ξ1,2 k ξ2, 2 l ξ3) ψ(ξ1) ψ(ξ2) ψ(ξ3) and ψ(ξi) is a suitable cut-off function on R ni for 1 ≤ i ≤ 3, and W(s1,s2,s3) is a three-parameter Sobolev space on R n × R n2 × Rn 3. Because the Fefferman criterion breaks down in three parameters or more, we consider the Lp boundedness of the Littlewood-Paley square function of T mf to establish its boundedness on the multi-parameter Hardy spaces. 展开更多
关键词 Hormander multiplier minimal smoothness condition Littlewood-Paley's inequality multi-parameter hardy Hp spaces multi-parameter sobolev spaces
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Existence and regularity of solutions to semi-linear Dirichlet problem of infinitely degenerate elliptic operators with singular potential term 被引量:1
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作者 CHEN Hua LUO Peng TIAN ShuYing 《Science China Mathematics》 SCIE 2013年第4期687-706,共20页
In this paper,we study the Dirichlet problem for a class of semi-linear infinitely degenerate elliptic equations with singular potential term.By using the logarithmic Sobolev inequality and Hardy's inequality,the ... In this paper,we study the Dirichlet problem for a class of semi-linear infinitely degenerate elliptic equations with singular potential term.By using the logarithmic Sobolev inequality and Hardy's inequality,the existence and regularity of multiple nontrivial solutions have been proved. 展开更多
关键词 infinitely degenerate elliptic equations logarithmic sobolev inequality hardy's inequality singular potential term
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