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PERIODIC SYSTEMS WITH TIME DEPENDENT MAXIMAL MONOTONE OPERATORS
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作者 Zhenhai LIU Nikolaos S.PAPAGEORGIOU 《Acta Mathematica Scientia》 SCIE CSCD 2024年第4期1280-1300,共21页
We consider a first order periodic system in R^(N),involving a time dependent maximal monotone operator which need not have a full domain and a multivalued perturbation.We prove the existence theorems for both the con... We consider a first order periodic system in R^(N),involving a time dependent maximal monotone operator which need not have a full domain and a multivalued perturbation.We prove the existence theorems for both the convex and nonconvex problems.We also show the existence of extremal periodic solutions and provide a strong relaxation theorem.Finally,we provide an application to nonlinear periodic control systems. 展开更多
关键词 periodic boundary condition time-dependent maximal monotone operator convex and nonconvex problems extremal solutions strong relaxation
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AN ITERATIVE PROCESS FOR FINDING APPROXIMATE SOLUTIONS TO NONLINEAR EQUATIONS OF STRONGLY ACCRETIVE OPERATORS 被引量:3
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作者 曾六川 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 1997年第2期132-141,共10页
In this paper, we investigate the Ishikawa iteration process in a p-uniformly smooth Banach space X. We prove that the Ishikawa iteration process converges strongly to the unique solution of the equation Tx=f when T i... In this paper, we investigate the Ishikawa iteration process in a p-uniformly smooth Banach space X. We prove that the Ishikawa iteration process converges strongly to the unique solution of the equation Tx=f when T is a Lipschitzian and strongly accretive operator frow X to X, or to the unique fixed point of T when T is a Lipschitzian and strictly pseudocontractive mapping from a nonempty closed convex subset K of X into itself. Our results are the extension and improvements of the earlier and recent results in this field. 展开更多
关键词 strongly ACCRETIVE operators STRICTLY pseudocontractive mapping. p-vniformly SMOOTH BANACH space.
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Weighted estimates for strongly singular integral operators with rough kernels
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作者 黄文礼 陶祥兴 李胜宏 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2010年第6期761-768,共8页
The Fourier transform and the Littlewood-Paley theory are used to give the weighted boundedness of a strongly singular integral operator defined in this paper. The paper shows that the strongly singular integral opera... The Fourier transform and the Littlewood-Paley theory are used to give the weighted boundedness of a strongly singular integral operator defined in this paper. The paper shows that the strongly singular integral operator is bounded from the Sobolev space to the Lebesgue space. 展开更多
关键词 strongly singular integral operators rough kernels Ap weights
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New iterative schemes for strongly relatively nonexpansive mappings and maximal monotone operators
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作者 WEI Li SU Yong-fu ZHOU Hai-yun 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2010年第2期199-208,共10页
In this paper, some new iterative schemes for approximating the common element of the set of fixed points of strongly relatively nonexpansive mappings and the set of zero points of maximal monotone operators in a real... In this paper, some new iterative schemes for approximating the common element of the set of fixed points of strongly relatively nonexpansive mappings and the set of zero points of maximal monotone operators in a real uniformly smooth and uniformly convex Banach space are proposed. Some weak convergence theorems are obtained, which extend and complement some previous work. 展开更多
关键词 strongly relatively nonexpansive mapping maximal monotone operator zero point fixed point weak convergence.
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Strong Converse Inequalities for Certain Mixed Szász-Beta Operators 被引量:2
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作者 QI Qiu-lan ZHANG Yu-ping 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第1期152-158,共7页
In this paper,a strong converse inequality of type B in terms of a new Kfunctional Kλα f,t2(0 < α < 2,0 ≤λ≤ 1) for certain mixed Szász-Beta operators is given.By this inequality,the converse theorem c... In this paper,a strong converse inequality of type B in terms of a new Kfunctional Kλα f,t2(0 < α < 2,0 ≤λ≤ 1) for certain mixed Szász-Beta operators is given.By this inequality,the converse theorem can be obtained for the operators. 展开更多
关键词 Szász-Beta operators K-FUNCTIONAL strong converse inequality Hlder inequality
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STRONG CONVERSE INEQUALITY FOR SZASZ-DURRMEYER OPERATORS 被引量:1
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作者 LI SONG(Department of Applied Mathematics,Zhejiang University, Hangzhou 310027.) 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 1996年第3期361-368,共8页
For Szasz-Durrmeyer operators L.(f,x),1<p ∞ we prove that, forsome m,where(x)2=x,M>0,is Ditzian-Totik modulus of smoothness.
关键词 Szasz-Durrmeyer operators strong converse inequality Ditzian-Totik modulus of smoothness.
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Strong Converse Inequalities for Szasz-Mirakjan Operators with Weights 被引量:5
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作者 LIU Guo-jun XUE Yin-chuan SUN Wei-bin 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2008年第3期384-389,共6页
In this paper, we give the strong converse inequalities of type B with the new K-functional Kλα(f,t2)w(0 ≤λ≤ 1, 0 < α < 2) on weighted approximation for Sz′asz-Mirakjan operators, which extend the previou... In this paper, we give the strong converse inequalities of type B with the new K-functional Kλα(f,t2)w(0 ≤λ≤ 1, 0 < α < 2) on weighted approximation for Sz′asz-Mirakjan operators, which extend the previous results. 展开更多
关键词 Szasz—Mirakjan算子 加权逼近 强逆不等式 数学
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ON STRONG APPROXIMATION APPLIED TO POST-WIDDER OPERATORS
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作者 Lucyna Rempulska Mariola Skorupka 《Analysis in Theory and Applications》 2006年第2期172-182,共11页
We introduce modified Post-Widder operators in polynomial weighted spaces of differentiable functions and we study strong approximation for them.
关键词 Post-Widder operator strong approximation degree of approximation
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ITERATIVE PROCESS TO -HEMICONTRACTIVE OPERATOR AND-STRONGLY ACCRETIVE OPERATOR EQUATIONS
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作者 丁协平 张红琳 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2000年第11期1256-1263,共8页
Let E be an arbitrary real Banach space and K be a nonempty closed convex subsets of E. Let T:K→K be a uniformly continuous _hemicontractive operator with bounded range and a n,b n,c n,a ′ n,b ′ n,c ′ n b... Let E be an arbitrary real Banach space and K be a nonempty closed convex subsets of E. Let T:K→K be a uniformly continuous _hemicontractive operator with bounded range and a n,b n,c n,a ′ n,b ′ n,c ′ n be sequences in [0,1] satisfying:ⅰ) a n+b n+c n=a ′ n+b ′ n+c ′ n=1. n≥0; ⅱ) lim b n= lim b ′ n= lim c ′ n= 0; ⅲ)∑∞n=0b n=∞; ⅳ) c n=o(b n). For any given x 0,u 0,v 0∈K, define the Ishikawa type iterative sequence x n as follows: x n+1 =a nx n+b nTy n+c nu n, y n=a ′ nx n+b ′ nTx n+c ′ nv n (n≥0), where u n and v n are bounded sequences in K. Then x n converges strongly to the unique fixed point of T. Related result deals with the convergence of Ishikawa type iterative sequence to the solution of _strongly accretive operator equations. 展开更多
关键词 strongly accretive operator _hemicontrictive operator Ishikawa type iterative sequence Banach space
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SOME PROPERTIES OF STRONGLY MONOTONICALLY T2 SPACES
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作者 Zhao Bin 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2005年第4期469-474,共6页
This paper investigates Buck's question about which class of spaces is strongly monotonically T2,and if other properties are combined with strongly monotonically T2,which class of spaces could be got. Based on having... This paper investigates Buck's question about which class of spaces is strongly monotonically T2,and if other properties are combined with strongly monotonically T2,which class of spaces could be got. Based on having a cushioned pair-base space and compact strongly monotonically T2 space,some results (Theorems 1--3) are obtained. 展开更多
关键词 cushioned pair-base compact strongly monotonically T2 operator strongly monotonically T2 space.
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Strong Converse Inequality for the Meyer-Knig and Zeller-Durrmeyer Operators
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作者 QI QIU-LAN LIU JUAN 《Communications in Mathematical Research》 CSCD 2012年第1期1-9,共9页
In this paper we give a strong converse inequality of type B in terms of unified K-functional Kλα (f, t2) (0 ≤λ≤ 1, 0 〈 α 〈 2) for the Meyer-Knig and Zeller-Durrmeyer type operators.
关键词 Meyer-Konig and Zeller-Durrmeyer type operator moduli of smooth-ness K-functional strong converse inequality HOder's inequality
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Iterative convergence theorems for maximal monotone operators and relatively nonexpansive mappings 被引量:5
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作者 WEI Li SU Yong-fu ZHOU Hai-yun 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2008年第3期319-325,共7页
In this paper, some iterative schemes for approximating the common element of the set of zero points of maximal monotone operators and the set of fixed points of relatively nonexpansive mappings in a real uniformly sm... In this paper, some iterative schemes for approximating the common element of the set of zero points of maximal monotone operators and the set of fixed points of relatively nonexpansive mappings in a real uniformly smooth and uniformly convex Banach space are proposed. Some strong convergence theorems are obtained, to extend the previous work. 展开更多
关键词 maximal monotone operator relatively nonexpansive mapping strong convergence zero point fixed point
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VISCOSITY APPROXIMATION METHODS FOR THE SPLIT EQUALITY COMMON FIXED POINT PROBLEM OF QUASI-NONEXPANSIVE OPERATORS 被引量:1
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作者 赵静 王盛楠 《Acta Mathematica Scientia》 SCIE CSCD 2016年第5期1474-1486,共13页
Let H;, H;, H;be real Hilbert spaces, let A : H;→ H;, B : H;→ H;be two bounded linear operators. The split equality common fixed point problem(SECFP) in the infinite-dimensional Hilbert spaces introduced by Moudaf... Let H;, H;, H;be real Hilbert spaces, let A : H;→ H;, B : H;→ H;be two bounded linear operators. The split equality common fixed point problem(SECFP) in the infinite-dimensional Hilbert spaces introduced by Moudafi(Alternating CQ-algorithm for convex feasibility and split fixed-point problems. Journal of Nonlinear and Convex Analysis)is to find x ∈ F(U), y ∈ F(T) such that Ax = By,(1)where U : H;→ H;and T : H;→ H;are two nonlinear operators with nonempty fixed point sets F(U) = {x ∈ H;: Ux = x} and F(T) = {x ∈ H;: Tx = x}. Note that,by taking B = I and H;= H;in(1), we recover the split fixed point problem originally introduced in Censor and Segal. Recently, Moudafi introduced alternating CQ-algorithms and simultaneous iterative algorithms with weak convergence for the SECFP(1) of firmly quasi-nonexpansive operators. In this paper, we introduce two viscosity iterative algorithms for the SECFP(1) governed by the general class of quasi-nonexpansive operators. We prove the strong convergence of algorithms. Our results improve and extend previously discussed related problems and algorithms. 展开更多
关键词 split equality common fixed point problems quasi-nonexpansive operator strong convergence viscosity iterative algorithms Hilbert space
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Creating unconventional geometric phase gate using squeeze-like operator assisted by strong driving field
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作者 朱爱东 张寿 +2 位作者 Yeon Kyu-Hwang Yu Seong-Cho Um Chung-In 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第6期1559-1565,共7页
Based on the idea that a squeezing process can be thought of as a total cumulative effect of a large number of tiny squeezing processes, we define a squeeze-like operator with a time-dependent squeeze parameter. Apply... Based on the idea that a squeezing process can be thought of as a total cumulative effect of a large number of tiny squeezing processes, we define a squeeze-like operator with a time-dependent squeeze parameter. Applying this operator to and combining with a system which includes a two-photon interaction between two atoms and an initial vacuum cavity field, and resorting to a resonant strong driving classical field, we obtain an unconventional geometric phase gate with a shorter gating time. 展开更多
关键词 squeeze-like operator quantum phase gate strong driving field
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New Result for Strongly Starlike Functions
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作者 R. O. Ayinla T. O. Opoola 《Applied Mathematics》 2017年第3期324-328,共5页
In this paper, using Salagean differential operator, we define and investigate a new subclass of univalent functions . We also establish a characterization property for functions belonging to the class .
关键词 strongly STARLIKE FUNCTIONS strongly CONVEX FUNCTIONS Salagean Differential operATOR
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Small Compact Perturbation of Operators in B∞(Ω)
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作者 朱森 苏丽 王立飞 《Northeastern Mathematical Journal》 CSCD 2008年第3期196-206,共11页
We consider an approximation problem related to strongly irreducible operators, that is, does the direct sum of a strongly irreducible operator in B∞(Ω) and certain operator have a small compact perturbation which... We consider an approximation problem related to strongly irreducible operators, that is, does the direct sum of a strongly irreducible operator in B∞(Ω) and certain operator have a small compact perturbation which is a strongly irreducible operator in B∞(Ω)? In this paper, we prove that the direct sum of any strongly irreducible operator in B∞(Ω) and certain biquasitriangular operator have small compact perturbations which are strongly irreducible operators in B∞(Ω). 展开更多
关键词 strongly irreducibility compact perturbation Cowen-Douglas operator B∞(Ω) operator
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On the Strongly Damped Wave Equations with Critical Nonlinearities
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作者 Qinghua Zhang 《Journal of Applied Mathematics and Physics》 2016年第4期697-705,共9页
We study the strongly damped wave equations with critical nonlinearities. By choosing suitable state spaces, we prove sectorial property of the operator matrix  together with its adjoint operator, investigate the... We study the strongly damped wave equations with critical nonlinearities. By choosing suitable state spaces, we prove sectorial property of the operator matrix  together with its adjoint operator, investigate the associated interpolation and extrapolation spaces, analysis the criticality of the nonlinearity with critical growth, and study the higher spatial regularity of the Y-regular solution by bootstrapping. 展开更多
关键词 Negative Laplacian Wave Equation strong Damping Sectorial operator Fractional Power Global Attractor
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CRITERIA OF STRONG TRANSIENCE FOR OPERATOR-SELF-SIMILAR MARKOV PROCESSES
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作者 吴传菊 张峰 刘禄勤 《Acta Mathematica Scientia》 SCIE CSCD 2006年第1期41-48,共8页
Yamamuro in [1] defines strong and weak transience of Markov processes; gives a criterion for strong transience of Feller processes; and further, discusses strong and weak transience of Ornstein-Uhlenbeck type process... Yamamuro in [1] defines strong and weak transience of Markov processes; gives a criterion for strong transience of Feller processes; and further, discusses strong and weak transience of Ornstein-Uhlenbeck type processes. In this article, the authors weaken the Feller property of the result in [1] to weak Feller property and discuss the strong transience of operator-self-similar Markov processes. 展开更多
关键词 operator-self-similar processes strong transience ISOTROPIC (weak) Feller processes
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基于强乘积运算下图的广义和连通度指标上下界
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作者 李志豪 朱焱 《运筹学学报(中英文)》 CSCD 北大核心 2024年第1期141-152,共12页
对于图G,令E(G)表示G的边集,令V(G)表示G的点集,d_(G)(v)表示v的度。对于边e=uv,定义广义和连通度指标χ_(α)(e)=(d_(G)(u)+d_(G)(v))^(α),其中α为任一实数。本文先介绍了图的S,R,Q,T四种运算,然后给出了四种运算下的强乘积,并利用... 对于图G,令E(G)表示G的边集,令V(G)表示G的点集,d_(G)(v)表示v的度。对于边e=uv,定义广义和连通度指标χ_(α)(e)=(d_(G)(u)+d_(G)(v))^(α),其中α为任一实数。本文先介绍了图的S,R,Q,T四种运算,然后给出了四种运算下的强乘积,并利用最大度最小度确定了其四种图的广义和连通度指标的上下界。 展开更多
关键词 广义和连通度指标 强乘积 四种运算 F-和
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两类推广的Roper-Suffridge算子的性质 被引量:5
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作者 王朝君 崔艳艳 朱思峰 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第4期55-58,共4页
讨论两类推广的Roper-Suffridge算子保持双全纯映照子族的性质.从定义出发证明推广的Roper-Suffridge算子在Cn中单位球上和复Banach空间单位球上保持强α次殆星映照及α次准凸映照的性质,进而得到推广的Roper-Suffridge算子在Cn中单位... 讨论两类推广的Roper-Suffridge算子保持双全纯映照子族的性质.从定义出发证明推广的Roper-Suffridge算子在Cn中单位球上和复Banach空间单位球上保持强α次殆星映照及α次准凸映照的性质,进而得到推广的Roper-Suffridge算子在Cn中单位球上和复Hilbert空间单位球上分别保持强星形性和α次准凸性. 展开更多
关键词 强α次殆星映照 α次准凸映照 Roper-SUFFRIDGE算子
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