双曲空间中俩有限簇全渐近非扩张映象的混合型迭代

在Hyperbolic空间中,讨论关于一有限簇全渐近非扩张映象与另一有限簇全渐近非扩张非自映象公共不动点的问题,引入了一个混合型迭代序列{x1∈Kxn+1=W(Sn ixn,Ti(PT)n-1 iyn,αn),i=1,2,…,ky n=W(Sn jxn,Tj(PTj)n-1 xn,βn),j=1,2,…,k,i≠j,∨n≥1,并在适当的条件下证明了Δ-收敛定理及混合型迭代序列{xn}Δ-收敛于F的一公共不动点。     

关于映象族的公共不动点

设E是完备的距离空间,设{S_i}_(i∈I)是映E到E的映象族,这里I表指标集,它可以是有限集,也可以是可数或不可数的无限集。x_*∈E称为{S_i}_(i∈I)的公共不动点,如果S_ix_*=x_* (?)i∈I.关于完备距离空间中映象的公共不动点问题,最近以来有不少的作者进行过研究.Chi Song Wong在[1]中讨论过两个映象的公共不动点的问题;在T.Mitchell和T·Lau Anthony,Chi Song Wong中分别讨论过映象半群的公共不动点的问题.最近,R·E·Bruck,Anuradha Jaiswal,Bijendra Singh在某些条件下,讨论过非扩张映象的紧致凸半群的公共不动点问题及拓扑半域上度量空间中映象族的公共不动点问题.     

混合平衡问题组及不动点问题公解的算法

最近,文献(J.Comput.Appl.Math.,2008,214:186-201.)讨论了关于有限个非扩张映象的解集与一个混合平衡问题的不动点集的公共元的迭代序列.受他们的启发,介绍了一种新的迭代算法,在Hilbert空间的框架下,用以寻求混合平衡问题组的解集与无限族的非扩张映象的不动点集的公共元.在适当条件下,逼近于这一公共元的强收敛定理被证明.所得结果是新的,它改进和推广了最近一些人的最新结果.     

总拟-φ-渐近非扩张映象不动点的混合广义f-投影方法

介绍了一个新的混合广义f-投影方法逼近一族一致总拟-φ-渐近非扩张映象的公共不动点.利用Kadec-Klee性质,在一致光滑且严格凸的Banach空间中,建立了关于一致总拟-φ-渐近非扩张映象公共不动点的强收敛定理,所得结论改进并统一了该领域已有的一些研究成果.     

集值映象族与Fuzzy映象族的不动点定理

本文绘出一个较一般的压缩型集值映象族的公共不动点定理,从而也推广了一些压缩型Fuzzy映象族的不动点定理。     

全渐近非扩张映象和无限族非扩张映象的强收敛定理

在实Hilbert空间中,改进Maingé和Moudafi的迭代,提出涉及全渐近非扩张映象和无限族非扩张映象的迭代算法,研究求解分层不动点问题公共不动点的强收敛性,在适当条件下,某些强收敛定理被证明.所得结果改进和推广了一些人的最新结果.     

一族中间意义下的渐近拟非扩张映象隐式迭代序列的强收敛性

在Banach空间中证明了一族中间意义下的渐近拟非扩张映象的隐式迭代序列收敛到其公共不动点的一个充要条件,并在一致凸的Banach空间中讨论了该隐式迭代序列的收敛性.     

(Ag)型相容映象的公共不动点定理

目的为了降低公共不动点定理中对映象对相容性的要求,扩展不动点定理的应用范围。方法引进(Ag)型相容映象,再利用度量空间中自映象对的非相容性条件。结果建立了一类具有Φ-压缩条件和(Ag)型相容性的两对非相容映象对的公共不动点定理。结论结果表明:度量空间中,对于具有(Ag)型相容性的非相容映象对,在不要求空间完备和映象连续的情况下就能够得到唯一的公共不动点,并且这个不动点是映象的不连续点。     

q-一致光滑Banach空间中严格伪压缩映象的黏性逼近

设E是一实的q-一致光滑Banach空间,C是E的一非空闭凸子集,Ti:C→C(i=1,2,…,N)是一有限簇严格伪压缩映象,且∩Ni=1F(Ti)≠ф.在一定条件下,用黏性逼近法证明了修订的Mann迭代序列强收敛于T1,T2,…,TN的公共不动点.     

有限族严格伪压缩映象具误差的一类新的合成隐迭代程序

参照强伪压缩映象不动点定理引进了涉及有限族严格伪压缩映象的带误差的合成隐迭代式. 在实Banach空间框架下, 利用Petryshyn不等式引理证明了该迭代序列强收敛于此严格伪压缩映象族的一个公共不动点.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that