Now showing items 275-294 of 2622

    • B2×B2 的全纯自同构群 

      肖金秀 ; 严荣沐; 黄涛  (《数学研究》编辑部, 2005-12)
      摘 要 讨论B2×B2 上的全纯自同构群, 并计算它的Bergman 核函数及其自同构的Jacobi 行 列式. Abstract In th is paper w e first investigate the holomorph ic automorph ism group of B 2×B 2, then calculate the Bergman kernel and the Jacobi determ inant of the ...
    • B_2×B_2的全纯自同构群 

      肖金秀; 黄涛; 严荣沐; 陈永发 (2005-12-20)
      讨论B2×B2上的全纯自同构群,并计算它的B ergm an核函数及其自同构的Jacob i行列式.
    • Background subtraction,driven seeds selection for moving objects segmentation and matting 

      Zhong, Bineng; Chen, Yan; Chen, Yewang; Ji, Rongrong; Chen, Ying; Chen, Duansheng; Wang, Hanzi; 钟必能; 纪荣嵘; 王菡子 (ELSEVIER SCIENCE BV, 2013-Mar 1)
      In this paper, we,address the difficult task of moving objects segmentation and matting in dynamic scenes. Toward this end, we propose a new automatic way to integrate a background subtraction (BGS) and an alpha matting ...
    • Ball-covering property of Banach spaces 

      Cheng, L. X.; 程立新 (2006)
      We consider the following question: For a Banach space X, how many closed balls not containing the origin can cover the sphere of the unit ball? This paper shows that: (1) If X is smooth and with dim X = n < infinity, in ...
    • Ball-covering property of Banach spaces that is not preserved under linear isomorphisms 

      Cheng, L. X.; Cheng, Q. J.; Liu, X. Y.; 程立新 (2008-01)
      By a ball-covering B of a Banach space X, we mean that it is a collection of open balls off the origin whose union contains the sphere of the unit ball of X. The space X is said to have a ball-covering property, if it ...
    • Banach空间中的β扰动优化(英文) 

      滕岩梅; 范远泽 (2002-06-30)
      通过在Banach空间中引入一种新拓扑来证明其上的β扰动优化定理成立.
    • Banach空间中的含c_0的可补渐进等距copy(英文) 

      陈东阳 (2005-12-20)
      给出了Sobczyk定理的渐近等距版本,同时也在向量值函数空间中讨论含C0的可补渐进等距copy.
    • Banach空间中线性系统范数约束可达性 

      陈彭年; 贺建勋 (1994)
      研究无穷维控制系统,范数约束可达性,其中X∈X,1≤P≤∞,X,u是自反bAnACH空间.文中提出一致范数约束可达性概念,得到充分必要条件.
    • Banach空间单位球面的球覆盖性质 

      傅瑞瑜; 程立新 (2006-03-30)
      证明了n维Banach空间的单位球面最少可被2n个不含原点的半径相同的球对称覆盖,并计算了空间(Rn,‖·‖2)中,单位球面可被∪in=1B(±rxi,r)(其中r∈R+,xi∈SX)覆盖时,r的最小值是2n,且球心{xi}ni=1构成了Rn的一组正交基.
    • Banach空间有界算子对的可控性 

      曹镇潮; 邵剑 (2000-11-25)
      本文研究 Banach空间线性系统 x( t) =Ax( t) +Bu( t)的可控性 ,其中 A,B为有界算子 ,得到其可控的充分必要条件 .这是文献 [3]结果的推广 .
    • Banach空间的p-Asplund伴随空间(英文) 

      程立新 (2001-06-30)
      我们称一个定义在 Banach空间E上的连续凸函数f具有 Frechet可微性质(FDP),如果 E上的每个实值凸函数g≤f均在E的一个稠密的G-子集上Frechet可微.本文主要证明了:对任何Banach空间E,均存在一个局部凸的相容拓扑p使得1)(E,P)是Hausdorff局部凸空间;2)E上的每个范数连续具有FDP的凸函数均是p-连续的;3)每个p-连续的凸函数均具有FDP; 4) p等价某个范数拓扑当且仅当E是Asplund空间.
    • Bayesian analysis of generalized partially linear single-index models 

      Poon, Wai-Yin; Wang, Hai-Bin; 王海斌 (ELSEVIER SCIENCE BV, 2013)
      We extend generalized partially linear single-index models by incorporating a random residual effect into the nonlinear predictor so that the new models can accommodate data with overdispersion. Based on the free-knot ...
    • Bayesian Analysis of Multivariate Probit Models with Surrogate Outcome Data 

      Poon, Wai-Yin(Chinese Univ Hong Kong, Dept Stat); Wang, Hai-Bin; 王海滨 (SPRINGER, 2010-09)
      A new class of parametric models that generalize the multivariate probit model and the errors-in-variables model is developed to model and analyze ordinal data. A general model structure is assumed to accommodate the information ...
    • Bayesian estimation and variable selection for single index models 

      Wang, Hai-Bin; 王海斌 (COMPUT STAT DATA AN, 2009-05-15)
      We develop a fully Bayesian method to analyze the single index models, including variable selection, the index vector estimation and the link function fitting with free-knot splines. The proposed method is implemented by ...
    • BCK-代数的理想的两点注记’ 

      林亚南 (《福建师范大学学报》自然科学版, 1987-06)
      本文说明了BKC-代数的两个理想生成的理想, 生成的子代数和这两个理想之并的包含关系, 指出黄骏敏同志的一篇文章中的几个不妥之处, 并解答了该文提出的一个问题
    • Benzenoid links 

      Yang,WL; Zhang,FJ; Klein,DJ; 杨维玲 (2010-01)
      In this paper, we study new configurations of benzenoid hydrocarbons, called benzenoid links. Roughly speaking, a primitive corofusene is a closed narrow hexagonal ribbon with out-of-plane curvature 0. A primitive corofusene ...
    • Bergman-Weil积分公式的拓广 

      林良裕 (1995)
      本文把Cn空间中著名的bErgMAn-WEIl公式拓广到一类具有低维解析待征流形的微分多面体域上,从而获得在一类非解析的多面体域上建立具有全纯核的全纯函数的积分表示式.
    • Bernstein-Bezier-Kantorovich算子列的逼近阶估计 

      王绍钦; 陈玲菊 (2005-06-30)
      文章研究了Bernstein-Bezier-Kantorovich算子列关于一般有界函数的逼近阶估计,得到一个其收敛阶的精确估计公式.有界变差函数的逼近情况成为本文结果的特例.文章的研究拓展了文献[J.Approx.Theory95(1998),369-387]的工作.
    • Bernstein-Bézier算子的点态逼近估计 

      王平华; 王涛; 杨军 (2003-03-30)
      利用一些概率论的有关性质及不等式,研究了有界可测函数f的Bernstein B啨zier算子B(α)n(f,x)的点态逼近速度,得到一个点态逼近速度渐近估计式.