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MONOTONE POINTS IN ORLICZ-BOCHNER SEQUENCE SPACES
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作者 Wanzhong Gong Zhongrui Shi 《Analysis in Theory and Applications》 2012年第4期301-311,共11页
In Orlicz-Bochner sequence spaces endowed with Orlicz norm and Luxemburg norm, points of lower monotonicity, upper monotonicity, lower local uniform monotonicity and upper local uniform monotonicity are characterized.
关键词 Banach lattice Orlicz-Bochner space Luxemburg norm Orlicz norm upper(lower) monotone point upper (lower) locally uniformly monotone point
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APPROXIMATE AMENABILITY OF CERTAIN INVERSE SEMIGROUP ALGEBRAS
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作者 Mehdi ROSTAMI Abdolrasoul POURABBAS Morteza ESSMAILI 《Acta Mathematica Scientia》 SCIE CSCD 2013年第2期565-577,共13页
In this article, the approximate amenability of semigroup algebra e1(S) is investigated, where S is a uniformly locally finite inverse semigroup. Indeed, we show that for a uniformly locally finite inverse semigroup... In this article, the approximate amenability of semigroup algebra e1(S) is investigated, where S is a uniformly locally finite inverse semigroup. Indeed, we show that for a uniformly locally finite inverse semigroup S, the notions of amenability, approximate amenability and bounded approximate amenability of e1(S) are equivalent. We use this to give a direct proof of the approximate amenability of e1 (S) for a Brandt semigroup S. Moreover, we characterize the approximate amenability of e1(S), where S is a uniformly locally finite band semigroup. 展开更多
关键词 Approximate amenability semigroup algebras uniformly locally finite inversesemigroup Brandt semigroup
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A new method for uniform local heating deep in body using ultrasound phased-array system
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作者 章琛曦 Bai Jingfeng Chen Yazhu 《High Technology Letters》 EI CAS 2008年第1期52-56,共5页
A new method for targeted heating of deep tissue was developed by using an ultrasound phased-array system which can generate various multiple loci patterns by electronically changing its amplitude or phase pattern. Th... A new method for targeted heating of deep tissue was developed by using an ultrasound phased-array system which can generate various multiple loci patterns by electronically changing its amplitude or phase pattern. This method involves using a technique of combining switching and rotating of multiple foei patterns to create a uniform temperature over tissue volumes in various size. Using this method, the target tissue deep in the body can be heated to a specified temperature, which gives conditions for thermo-sensi- tive liposomes release. A simulation study for a 108-element, spherically sectioned array was performed to determine an optimal heating scheme from a set of multiple focus fields which were produced by inputting different combinations of phases and amplitudes. Comparisons of a static multiple foei field, the switched fields and the switched-rotated fields indicated that the technique of combining switching and rotating of multiple foei patterns has advantages of both lowering the peak temperature and evening the temperature distribution. The simulation results also show that the therapeutic heating zones in various size ( Φ5mm ~40mm) with uniform temperature distributions can be obtained employing the combined method. These results offer significant data for desisting thermotherapy equipment for tumor-specific drug release with thermo-sensitive liposomes. 展开更多
关键词 ultrasound phased-array thermo-sensitive liposome specific release tumor uniform local heating
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Approximative compactness and continuity of metric projector in Banach spaces and applications 被引量:5
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作者 HUDZIK Henryk KOWALEWSKI Wojciech WISLA Marek 《Science China Mathematics》 SCIE 2008年第2期293-303,共11页
First we prove that the approximative compactness of a nonempty set C in a normed linear space can be reformulated equivalently in another way.It is known that if C is a semi-Chebyshev closed and approximately compact... First we prove that the approximative compactness of a nonempty set C in a normed linear space can be reformulated equivalently in another way.It is known that if C is a semi-Chebyshev closed and approximately compact set in a Banach space X,then the metric projectorπC from X onto C is continuous.Under the assumption that X is midpoint locally uniformly rotund,we prove that the approximative compactness of C is also necessary for the continuity of the projectorπC by the method of geometry of Banach spaces.Using this general result we find some necessary and sufficient conditions for T to have a continuous Moore-Penrose metric generalized inverse T^+,where T is a bounded linear operator from an approximative compact and a rotund Banach space X into a midpoint locally uniformly rotund Banach space Y. 展开更多
关键词 approximative compactness CONTINUITY metric projector midpoint locally uniformly rotundity 46B20
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Monotonicity and Best Approximation in Banach Lattices 被引量:3
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作者 Shu Tao CHEN Xin HE H. HUDZIK 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2009年第5期785-794,共10页
Hudzik and Kurc discussed some best approximation problems in Banach lattices by means of monotonicities. This paper deals with more general best approximation problems in Banach lattices. Existence, uniqueness, stabi... Hudzik and Kurc discussed some best approximation problems in Banach lattices by means of monotonicities. This paper deals with more general best approximation problems in Banach lattices. Existence, uniqueness, stability and continuity for such best approximation problems are discussed. 展开更多
关键词 Banach lattice uniform monotonicity strict monotonicity upper (lower) locally uniform monotonicity best approximation
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Local solvability of the k-Hessian equations 被引量:3
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作者 TIAN GuJi WANG Qi XU Chao-Jiang 《Science China Mathematics》 SCIE CSCD 2016年第9期1753-1768,共16页
We give a classification of second-order polynomial solutions for the homogeneous k-Hessian equation σ_k[u] = 0. There are only two classes of polynomial solutions: One is convex polynomial; another one must not be(k... We give a classification of second-order polynomial solutions for the homogeneous k-Hessian equation σ_k[u] = 0. There are only two classes of polynomial solutions: One is convex polynomial; another one must not be(k + 1)-convex, and in the second case, the k-Hessian equations are uniformly elliptic with respect to that solution. Based on this classification, we obtain the existence of C∞local solution for nonhomogeneous term f without sign assumptions. 展开更多
关键词 k-Hessian equations local solution uniform ellipticity implicit function theorem
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A Series of Convex Functions on a Banach Space
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作者 Zheng Xiyin Department of Mathematics, Yunnan University, Kunming 650091, China 《Acta Mathematica Sinica,English Series》 SCIE CSCD 1998年第1期77-84,共8页
A series of convex functions on a Banach space is studied. The generalizations of the Moreau-Rockafellar theorem are given. As its application, the partial generalization of the Kuhn- Tucker theorem is obtained.
关键词 Pointwise convergence locally uniform convergence SUBDIFFERENTIAL Moreau-Rockafellar theorem Kuhn-Tucker theorem
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Long-term Analysis of Degenerate Parabolic Equations in R^N
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作者 Gao Cheng YUE Cheng Kui ZHONG 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2015年第3期383-410,共28页
Longtime behavior of degenerate equations with the nonlinearity of polynomial growth of arbitrary order on the whole space RN is considered. By using-tra jectories methods, we proved that weak solutions generated by d... Longtime behavior of degenerate equations with the nonlinearity of polynomial growth of arbitrary order on the whole space RN is considered. By using-tra jectories methods, we proved that weak solutions generated by degenerate equations possess an(LU^2(R^N), Lloc^2(R^N))-global attractor.Moreover, the upper bounds of the Kolmogorov ε-entropy for such global attractor are also obtained. 展开更多
关键词 Degenerate parabolic equations unbounded domains locally uniform spaces global attractor Kolmogorov ε-entropy
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Moderate Deviation for the Single Point Catalytic Super-Brownian Motion
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作者 Xu YANG Mei ZHANG 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2012年第9期1799-1808,共10页
We establish the moderate deviation for the density process of the single point catalytic super-Brownian motion. The main tools are the abstract Gaertner-Ellis theorem, Dawson-Gaertner the- orem and the contraction pr... We establish the moderate deviation for the density process of the single point catalytic super-Brownian motion. The main tools are the abstract Gaertner-Ellis theorem, Dawson-Gaertner the- orem and the contraction principle. The rate function is expressed by the Fenchel-Legendre transform of log-exponential moment generation function. 展开更多
关键词 Super-Brownian motion CATALYTIC conditional log-Laplace functional locally uniform moderate deviation
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Upper(Lower) Monotone Coefficient of a Point in Orlicz Function Spaces
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作者 Hong Shi MA Xin Bo LIU 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2016年第5期585-598,共14页
The calculation expressions of upper (lower) monotone coefficient of a point in Orlicz function spaces are given.
关键词 Orlicz function space LM upper (lower) monotone coefficient upper (lower) locally uniform monotone point
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