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1.
显式获得了第二类华罗庚域的Bergman核函数.第二类华罗庚域是指由如下表达式所界定的域|w1|2p1+|w2|2p2+…+|wn|2pn<det(I-Z)这里,1/p1,1/p2,…,1/pn-1都是正整数,pn是任意正实数,RII(p)是第二类典型域,Z∈RII(p).关键之处有两点1)给出了将此域的任一内点(W,Z)映为(W*,0)的全纯自同构群;2)引进了semi-Reinhardt域并给出了它的完备规范正交函数系.  相似文献   

2.
由于WI域既不是齐性域又不是R einhardt域,故以往求Bergm an核函数的方法都行不通.本文用新的方法计算域WI的Bergm an核函数的显式表达式.关键之处有两点:一是给出WI的全纯自同构群,群中每一元素将形为(W,Z0)的内点映为点(W*,0);二是引进了sem i-R einhardt的概念并求出了其完备标准正交函数系.  相似文献   

3.
主要是计算域WⅢ 的Bergman核函数的显式表达式 .WⅢ ={W2 ∈C ,(W1 ,Z) ∈YⅢ(q) :|W2 |2P <(1 -X) 3det(I Z Z) } .其中YⅢ ={ (W1 ,Z) ||W1 |2K相似文献   

4.
首先计算出了代数闭域上的有理函数域的位的次数,然后利用代数函数域的Kummer扩张的亏格关系,给出了具体计算形如C:y^n=(x-a1)^n1(x-a2)^n2…(x-as)^ns的曲线的亏格公式。这是超椭圆曲线的亏格公式的推广。  相似文献   

5.
给出了三角域上的一类二元三次插值样条函数 ,讨论了该样条函数的连续性方程和插值误差估计 ;该样条函数具有C1 阶光滑且近似C2 阶光滑 ,是单三次的二元样条函数 ,较双三次样条函数低三次 ,并具有计算量小等优点  相似文献   

6.
利用辅助信息,针对线性模型yi=βxi xi^yεi,εi i.i.d,Fεi=0,给出了总体分布函数的估计量:F(t)=1/N[∑j∈iΔ(t-yi) ∑j∈,1/n∑j∈Δ(t-β^*xi-xi^yuj)],uj=(yj-β^*xj)/xjy^*,j∈s,改进了Chambers-Dunstan的结果。  相似文献   

7.
在空间域中,对数字图像的线性滤波进行了分析,讨论了空间域函数h(x,y),给出了数字图像线性滤波的Matlab实现方法。  相似文献   

8.
利用全纯自同构映射,求出了第二类Cartan-Hartogs域Y11上Bergman度量矩阵行列式det T(W,Z;W^-,Z^-)的显表达式,从而得到Yu上的双全纯不变量JYH.进一步研究了当点(W,Z)趋于边界δYH时JYH的极限。有如下结论:当点(W.Z)→(W0,Z0)∈δYH(|W0|≠0)时,JYH存在极限π^m+n(m+1+N)^m+n)/(m+N);当点(W.Z)→(0,Z0)∈δYH时,JYH没有极限.  相似文献   

9.
相依样本下回归函数分割估计的渐近正态性   总被引:15,自引:0,他引:15  
在一种相依样本下,利用鞅的理论证明了回归函数基于分割的估计ma(x)=∑i=1^n IAn(x)(Xi)Yi/∑i=1^n IAn(x)(Xi)渐近正态性,其中IA(x)为集合A的示性函数。给出了相关定理:在一定的假设条件下,Xi具有密度函数f(x),E|Y|^2+δ 〈∞,EV^2+δ〈∞,x∈R^d为固定点,nvn^2→∞,则√nvn(m4x(x)-m(x))→L N(0,σ^2),n→∞.  相似文献   

10.
主要研究了高阶微分方程 f(k)+ Ak -1 f(k -1)+…+ A1 f '+ A0 f =0的解在角域上的增长性,其中 A0,Aj (1≤j≤k -1)为亚纯函数,且假设 A0以有限复数 a 为亏值,ρ(Aj )=0(1≤j≤k -1),通过给定适当的条件,证明了齐次线性微分方程的任一非零解在某些角域上的增长级为无穷。  相似文献   

11.
研究了第三类华罗庚域的凸性,得到此域为凸域的充分必要条件,并将其推广到第三类广义华罗庚域上.作为应用,计算了第三类华罗庚域HEⅢ(N1,…,Nr,;7;4,…,4)上的Carathéodory度量和Kobayashi度量.  相似文献   

12.
讨论了具有周期边界的Reinhardt域上的ToeplitzC-代数,用groupoid方法,刻划了相关的C-代数,推广了SheuAJL等的工作.  相似文献   

13.
Bergman kernels on generalized Hua domains   总被引:9,自引:0,他引:9  
The Bergman kernel functions with explicit formulas of the generalized Hua domains are obtained. And the holomorphic automorphism group for each generalized Hua domain is also given.  相似文献   

14.
一类Reinhardt域的全纯自同构最大群   总被引:1,自引:0,他引:1  
本文给出了一类Reinhardt域的一个变换群并用初等的复分析方法证明了该群就是此类Reinhardt域的全纯自同构最大群.  相似文献   

15.
《科学通报(英文版)》1999,44(21):1947-1947
The main point is the calculation of the Bergman kernel for the so-called Cartan-Har-togs domains. The Bergman kernels on four types of Cartan-Hartogs domains are given in explicit formulas. First by introducing the idea of semi-Reinhardt domain is given, of which the Cartan-Hartogs domains are a special case. Following the ideas developed in the classic monograph of Hua, the Bergman kernel for these domains is calculated. Along this way, the method of "inflation", is made use of due to Boas, Fu and Straube.  相似文献   

16.
The main point is the calculation of the Bergman kernel for the so-called Cartan-Hartogs domains. The Bergman kernels on four types of Cartan-Hartogs domains are given in explicit formulas. First by introducing the idea of semi-Reinhardt domain is given, of which the Cartan-Hartogs domains are a special case. Following the ideas developed in the classic monograph of Hua, the Bergman kernel for these domains is calculated. Along this way, the method of “inflation”, is made use of due to Boas, Fu and Straube.  相似文献   

17.
研究了模糊命题演算的形式演绎系统L 和修正的Kleene逻辑系统 W ,W ,Wk 及R0 代数 .给出了L 系统的半对偶形式系统SL- ;与交推理规则相对应 ,引入并推理规则 ,证明了L 系统和SL- 系统的等价性 .为形式演绎系统的研究和应用提供了一个有益的途径  相似文献   

18.
Members of the killer cell immunoglobulin-like receptor (KIR) family, a large group of polymorphic receptors expressed on natural killer (NK) cells, recognize particular peptide-laden human leukocyte antigen (pHLA) class I molecules and have a pivotal role in innate immune responses. Allelic variation and extensive polymorphism within the three-domain KIR family (KIR3D, domains D0-D1-D2) affects pHLA binding specificity and is linked to the control of viral replication and the treatment outcome of certain haematological malignancies. Here we describe the structure of a human KIR3DL1 receptor bound to HLA-B*5701 complexed with a self-peptide. KIR3DL1 clamped around the carboxy-terminal end of the HLA-B*5701 antigen-binding cleft, resulting in two discontinuous footprints on the pHLA. First, the D0 domain, a distinguishing feature of the KIR3D family, extended towards β2-microglobulin and abutted a region of the HLA molecule with limited polymorphism, thereby acting as an 'innate HLA sensor' domain. Second, whereas the D2-HLA-B*5701 interface exhibited a high degree of complementarity, the D1-pHLA-B*5701 contacts were suboptimal and accommodated a degree of sequence variation both within the peptide and the polymorphic region of the HLA molecule. Although the two-domain KIR (KIR2D) and KIR3DL1 docked similarly onto HLA-C and HLA-B respectively, the corresponding D1-mediated interactions differed markedly, thereby providing insight into the specificity of KIR3DL1 for discrete HLA-A and HLA-B allotypes. Collectively, in association with extensive mutagenesis studies at the KIR3DL1-pHLA-B*5701 interface, we provide a framework for understanding the intricate interplay between peptide variability, KIR3D and HLA polymorphism in determining the specificity requirements of this essential innate interaction that is conserved across primate species.  相似文献   

19.
为评价OVERHAUSER 磁力仪的综合性能, 同时为质子磁力仪的研发提供理论指导, 研究了灵敏度在时域和频域的表征方法, 并在理论上证明了两种表征方法本质上的一致性; 分析了采样率对灵敏度的影响; 设计实验标定了JPM鄄2 型质子磁力仪的灵敏度。实验结果表明, JPM鄄2 型质子磁力仪灵敏度时域表征为0. 18 nT,频域表征为0. 32 nT/ Hz@0. 1 Hz, 得到了测量数据日变分量、噪声分量的频域分布图。  相似文献   

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