首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
本文研究了Banach空间中的一类新的广义集值变分包含:θ∈N(w,y) A(z,u),利用集值m-增生映射的预解算子建立了广义集值变分包含与不动点问题的等价性,并利用这种等价性建立了一些算法,证明了算法的收敛性.  相似文献   

2.
张云艳 《贵州科学》2007,25(Z1):9-15
本文引入了Hilbert空间中一类广义集值变分包含问题,利用这类广义集值拟变分包含问题与预解方程及不动点问题间的等价性,建立了与这类广义集值拟变分包含问题有关的隐预解动力系统,给出了Hilbert空间中这类广义集值拟变分包含隐预解动力系统的解的存在性和收敛性定理,并指出了这类隐预解动力系统的解的轨道整体、指数地收敛于Hilbert空间中广义集值拟变分包含问题的唯一解.这些结果改进、推广和统一了文[1-8]的相应结果.  相似文献   

3.
研究了一类新的广义集值变分包含:0∈N(w,y)+A(z,u)在实Hilbert空间,利用极大单调算子的性质,建立了广义集值变分包含和不动点问题的等价性,利用这种等价性,建立了一些摄动迭代算法,并证明了近似解序列强收敛于精确解。  相似文献   

4.
2002年张石生先生介绍了一类集值变分包含,并在Banach空间内给出了这类集值变分包含解的存在定理和解的迭代算法.在凸度量空间构造一个新的凸结构,对这类集值变分包含定义了带误差的Ishikawa迭代程序,从而得出了这类集值变分包含解的新迭代算法,推广和统一了近期许多人的已知结果.  相似文献   

5.
一类模糊映象的广义非线性变分包含组   总被引:1,自引:1,他引:1  
在Hilbert空间中引入并研究了一类模糊映象的广义非线性变分包含组.利用极大单调映象的预解算子技巧,建立了这类模糊映象的变分包含组与非线性集值映象的不动点问题之间的等价关系,并给出了这类变分包含组的解的存在性定理.  相似文献   

6.
本文引入了一类p-η映射,应用与p-η映射相关的预解算子的一些性质研究一类新的集值变分包含问题.首先给出这类集值变分包含问题与一个不动点问题的等价性,然后借助于Banach压缩映射原理得到此类集值变分包含问题的解的存在性.  相似文献   

7.
引入和研究了一新的随机模糊映射的随机广义集值非线性混合变分包含,并构造了新的逼近此变分包含随机解的随机迭代算法.利用广义单调映象的近似映射技巧,进一步讨论了随机模糊映射的随机广义集值非线性混合变分包含随机解的存在性及由此随机迭代算法生成的随机迭代序列的收敛性,所得结果推广与改进了文献中的一些相应的主要结果.  相似文献   

8.
在Hilbert空间中引入并研究了一类涉及广义极大单调映象的集值变分包含问题.利用预解算子技巧构造这类变分包含解的迭代逼近算法,证明了解的存在性以及由算法生成的迭代序列的收敛性.  相似文献   

9.
引入了H空间中一类关于极大η-单调映象的广义集值隐拟变分包含,利用预解算子技术建立了这类变分包含解的一种新迭代算法逼近,证明了其解的存在性以及由算法生成的迭代序列的收敛性。  相似文献   

10.
Banach空间中的隐式集值变分包含   总被引:1,自引:0,他引:1  
在Banach空间中研究了一类新的变分包含——隐式集值变分包含问题.运用预解算子的方法,讨论隐式集值变分包含与预解方程的等价性,在紧性条件下证明了隐式变分包含问题解的存在性定理,给出迭代解的计算方法,并把所得的结果推广到非紧的情形.这些结论推广、改进并统一了国内外关于变分包含问题近期所获得的一些结果.  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

13.
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。  相似文献   

14.
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.  相似文献   

15.
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-  相似文献   

16.
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-  相似文献   

17.
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  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号