多参数M估计与随机加权法

本文考虑了标准化的多参数Ｍ估计之误差分布的随机加权逼近，得到的逼近精度为ｏ（ｎ￣（－１／２）），从而我们推广了［１］和［２］的结果。     

Hardy型空间Hk0^p,q,s（w1,w2）及其应用

本文引进一类加权中心原子（ｐ，ｑ，ｓ，ｗ１，ｓｗ），０〈ｐ≤１〈ｑ≤２，ｓ≥［ｎ（１／ｐ－１）］，ｗ１，ｗ２∈Ａ１，定义了加权Ｈａｒｄｙ型空间Ｈｋ０＾ｐ，ｑ，ｓ（ｗ１，ｗ２），并且利用广义的Ｌｕｓｉｎ面积特征，给出了加权空间的一种等价刻化及内插定理。     

一个加权中值滤波N次迭代猜想的证明

证明了（１）中提出的关于一个加权中值滤波的如下猜想：加权中值滤波＜１、１、２、１＞的Ｎ次迭代与一个加权中值滤波相等，也证明了在一定意义下这种加权中值滤波是唯一的。     

B值随机元阵列加权和的收敛性与大数定律

令｛Ｘｎｉ，１≤ｉ≤ｋｎ↑∞，ｎ≥１｝为Ｂ值随机元阵列，｛ａｎｉ，１≤ｉ≤ｋｎ，ｎ≥１｝为实数阵列。讨论加权和Ｓｎ＝Σ↑ｋｎ↓ｉ＝１ａｎｉＸｎｉ，ｎ≥１的收敛性。在条件ｓｕｐ↓ｎ，ｉＰ（‖Ｘｎｉ‖〉ｘ）＝０（ｘ＾－ｒ）下给出了一些收敛性结果（１≤ｒ〈ｐ≤２），同时用这种收敛性刻划了Ｂａｎａｃｈ空间的ｐ型性质。     

部分线性模型中估计的强相合性

考虑回归模型ｙｉ＝ｘｉβ＋ｇ（ｘｉ）＋σｉｅｉ,１≤ｉ≤ｎ,其中σｉ２＝ｆ（ｕｉ）,（ｘｉ,ｕｉ）是固定非随机设计点列,ｆ（·）和ｇ（·）是未知函数,β是待估参数,ｅｉ是随机干扰．本文基于ｇ（·）及ｆ（·）的一类非参数估计的β的最小二乘估计βｎ和加权最小二乘估计βｎ,在适当的条件下证明了它们的强相合性．     

加权移位的乘积

加权移位的乘积丁宣浩石刚（数学系）（广西右江师专）设Ｈ为复可分无穷维Ｈｉｌｂｅｒｔ空间，Ｂ（Ｈ）为Ｈ上有界线性算子全体。对Ｈ上的向前与向后的单侧加权移位，向左与向右的双侧加权移位，不论重数，都统称为加权移位。美国数学家Ｈａｌｍｏｓ在文［１］中问：“哪...     

Dirichlet L-函数倒数的2k次加权均值

利用三角和估计、特征和估计与解析方法，研究Dirichlet L-函数倒数的2k次加权均值.证明了当整数ｑ≥２，实数Ｑ＞１时，对任意的正整数ｋ和ｍ，且(ｍ，ｑ≤Ｑｑ）＝１，有加权均值公式ｑ≤Ｑ(Ａｋ（ｑ）)/(φ２（ｑ）)ｘｍｏｄ　ｑ(｜Ｇ（ｍ，ｑ）｜２)/(｜Ｌ（１，ｘ）｜２ｋ)＝（１５/π２）ｋＱ＋Ｏ（Ｑ1/2＋ε）．     

加权Campanato空间上的Littlewood－Paleyg－算子

本文证明了若（加权ｃａｍｐａｎａｔｏ空间），并且ｉｎｆｇ（ｆ）（ｘ）＜∞，那么ｇ（ｆ）（ｘ）也属于，并且存在不依赖于ｆ的常数Ｃ使得这里０≤ａ＜１。     

随机和过程及其应用

定义１设Ｎ（ｔ）是一个随机过程,对任何ｔ≥０,Ｎ（ｔ）是取非负整数值的随机变量;又设｛Ｘｎ（ｔ）｝是一个随机过程的序列,且对任何ｔ,Ｘ１（ｔ）,Ｘ２（ｔ）,…是与Ｎ（ｔ）独立的随机序列,则Ｓ（ｔ）＝∑Ｎ（ｔ）ｋ＝１Ｘｋ（ｔ）也是一个随机过程,称之为序...     

L^p—混合阵列加权和的L^r—收敛性和弱大数定律

讨论了加权和ｌｎ∑ｉ＝１ａｎｉＸｎｉ的Ｌ＾ｒ－收敛性和弱大数定律，其中（ｘｎｉ，ｉ＝１，２，．．．ｌｎ↑∞ｎ≥１）是Ｌ＾ｐ－混合阵列（ａｎｉ，ｉ＝１，２，．．．ｌｎ↑∞ｎ≥１）是实数阵列。     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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