共查询到20条相似文献,搜索用时 0 毫秒
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Muhammed Ali Alan 《Potential Analysis》2013,38(2):457-470
We analyze the supports of weighted equilibrium measures in ? n . We give explicit examples of families of compact sets which arise as the support of a weighted equilibrium measure for some admissible weight w. These examples also give new constructions of plurisubharmonic functions in the Lelong class. We also include a list of open problems on the support of extremal measures which are related to solutions of Monge–Ampère equations. 相似文献
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A vector logarithmic-potential equilibrium problem with the Angelesco interaction matrix is considered for two nested intervals with a common endpoint. The ratio of the lengths of the intervals is a parameter of the problem, and another parameter is the ratio of the masses of the components of the vector equilibrium measure. Two cases are distinguished, depending on the relations between the parameters. In the first case, the equilibrium measure is described by a meromorphic function on a three-sheeted Riemann surface of genus zero, and the supports of the components do not overlap and are connected. In the second case, a solution to the equilibrium problem is found in terms of a meromorphic function on a six-sheeted surface of genus one, and the supports overlap and are not connected. 相似文献
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This article considers a system with infinitely many interacting particles, starting with a system of n interacting particles that is described by a system of n stochastic differential equations for the time-varying locations and weights. Any particle in the system interacts with others through the weighted empirical measure Un formed by the sum of weighted Dirac measures on the n particles. Weak convergence of the weighted empirical measure is studied under suitable conditions, such as bounded initial values, and linear growth of drift and diffusion coefficients. Thereafter, the limit of the weighted empirical measures is identified to be a martingale solution of the infinite interacting system. 相似文献
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In this paper we establish that the density of the equilibrium measure of finitely many intervals for both logarithmic and Riesz potentials is convex. The main tool is a balayage ping-pong technique. A?similar result is obtained for finitely many arcs on the unit circle. Applications to external field problems and constrained energy problems are presented. 相似文献
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In this paper, we will study the dependence of eigen-pairs \((\lambda _k(\rho ), \varphi _k(x,\rho ))\) of weighted Dirichlet eigenvalue problem on weights \(\rho \). It will be shown that \(\lambda _k(\rho )\) and \(\varphi _k(x,\rho )\) are completely continuous (CC) in \(\rho \). Precisely, when \(\rho _n\) is weakly convergent to \(\rho \) in some Lebesgue space, \(\lambda _k(\rho _n)\) is convergent to \(\lambda _k(\rho )\). As for the convergence of eigenfunctions, since eigenvalues may have multiple eigenfunctions, it will be shown that the distance from \(\varphi _k(x,\rho _n)\) to the eigen space \(V_k(\rho )\) of \(\lambda _k(\rho )\) is tending to zero. As applications, the CC dependence of solutions of linear inhomogeneous equations and the CC dependence of the heat kernels on coefficients will be given. 相似文献
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《数学季刊》2016,(1):1-8
In this article, we study the complete convergence for weighted sums of widely orthant dependent random variables. By using the exponential probability inequality, we establish a complete convergence result for weighted sums of widely orthant dependent ran-dom variables under mild conditions of weights and moments. The result obtained in the paper generalizes the corresponding ones for independent random variables and negatively dependent random variables. 相似文献
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本文研究两两NQD系加权和的完全收敛性,证明了一般双下标加权系数的加权部分和的完全收敛性,改进了吴群英(2002)的结果。 相似文献
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本文研究行两两NQD阵列加权和的完全收敛性,证明了一般双下标加权系数的加权部分和的完全收敛性,推广了文献[8]的结果. 相似文献
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In this short paper, We establish the weighted Logarithmic Sobolev inequalities for sub-Gaussian measure of high dimension
with explicit constants via phase transition and the well-known Bakry-émery criterion. 相似文献
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Complete Convergence and Complete Moment Convergence for Maximal Weighted Sums of Extended Negatively Dependent Random Variables 下载免费PDF全文
Ji Gao Yan 《数学学报(英文版)》2018,34(10):1501-1516
In this paper,the complete convergence and complete moment convergence for maximal weighted sums of extended negatively dependent random variables are investigated.Some sufficient conditions for the convergence are provided.In addition,the Marcinkiewicz–Zygmund type strong law of large numbers for weighted sums of extended negatively dependent random variables is obtained.The results obtained in the article extend the corresponding ones for independent random variables and some dependent random variables. 相似文献
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1 IntroductionThis paper is concerned with biholomorphic mappings between two bounded domains D andG both in C". Consequently, an important question is whether the domain D is biholomorphicto G? We give an answer for this question under a very weak condition.Let D be a bounded domain and Bn the unit ball in Cn. Let T(D) be the holomorphictangent bundle of D. We will identify T(D) with D × Cn. Let H(D1, D2) be the family ofholomorphic mappings from D1 to D2. We introduce the followin… 相似文献
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The purpose of this paper is to present a characterization of certain types of
generalized weighted Peetre K-functionals by means of a modulus of smoothness.
This new modulus is based on the classical one taken on a certain linear
transform of the function. A new modulus of smoothness which describes the best
algebraic approximation is introduced. 相似文献
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设{Xni:1≤i≤n,n≥1}为行间独立的B值r.v.阵列,g(z)是指数为1/p的正则变化函数,r>0,{ani 1≤t≤n,n≥1}为实数阵列,本文得到了使(?)成立的条件,推广并改进了Stout及Sung等的著名结论. 相似文献
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Maria Roginskaya 《Mediterranean Journal of Mathematics》2012,9(2):403-407
The notion of Riesz sets tells us that a support of Fourier transform of a measure with non-trivial singular part has to be large. The notion of Rajchman sets tells us that if the Fourier transform tends to zero at infinity outside a small set, then it tends to zero even on the small set. Here we present a new angle of an old question: Whether every Rajchman set should be Riesz. 相似文献
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本文讨论了不同分布NA随机变量序列加权和的完全收敛性,获得了较[7]中的定理1及定理A更为一般的安全收敛性,并得到了完全收敛速度与矩条件之间的等价关系。 相似文献
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Complete Convergence for Weighted Sums of Negatively Superadditive Dependent Random Variables 下载免费PDF全文
Let $\{X_n,n\geq1\}$ be a sequence of negatively superadditive
dependent (NSD, in short) random variables and $\{a_{nk}, 1\leq
k\leq n, n\geq1\}$ be an array of real numbers. Under some suitable
conditions, we present some results on complete convergence for
weighted sums $\sum_{k=1}^na_{nk}X_k$ of NSD random variables by
using the Rosenthal type inequality. The results obtained in the
paper generalize some corresponding ones for independent random
variables and negatively associated random variables. 相似文献