多项式翻转公式的一个新结果(英文)

设ｆ（ｘ）是一个实函数，ｆ（ｘ＋ｉｙ）在某个包含区间［ａ，ｂ］的某区域内解析，则∑ａ＜ｎ≤ｂｅ（ｆ（ｎ））＝ｅ（－１８）∑α＜ｎ≤β｜ｆ″（ｘｎ）｜－１２ｅ（ｆ（ｘｎ）－ｎｘｎ）＋△（ｆ，ａ，ｂ）其中α，β，ｘｎ的定义是（１），余项△是（９），它改进了文［１］，［２］的结果．     

关于复Banach空间的几何学

本文介绍复Ｂａｎａｃｈ空间几何学近年来的发展状况及其与向量值调和分析、Ｂ值鞅理论的联系。文章包括以下内容：１．几个反例；２．复凸性与复凸模；３．解析Ｒａｄｏｎ－Ｎｉｋｏｄｙｍ性质的分析特征；４．解析Ｒａｄｏｎ－Ｎｉｋｏｄｙｍ性质的几何特征；５．几种ＲＮ性质的比较；６．ＰＬ一致凸性的鞅刻画；７．Ｈ一致凸性的鞅刻画；８．向量值Ｈａｒｄｙ与Ｐａｌｅｙ不等式；９．解析ＵＭＤ空间。     

A REMARK ON DUALITY FOR THE SUM OF CONVEX FUNCTIONS IN GENERAL BANACH SPACES

§１．ＩｎｔｒｏｄｕｃｔｉｏｎＬｅｔＥｂｅａｒｅａｌＢａｎａｃｈｓｐａｃｅ，ｎｏｔｎｅｃｅｓａｒｉｌｙｒｅｆｌｅｘｉｖｅ．ＬｅｔΦ，Ψ：Ｅ→］－∞，∞］ｂｅｔｗｏｌｏｗｅｒｓｅｍｉｃｏｎｔｉｎｕｏｕｓｃｏｎｖｅｘｆｕｎｃｔｉｏｎｓ．Ｗｅｄｅｎｏｔｅ...     

奇异半线性发展方程的局部Cauchy问题

本文在Ｂａｎａｃｈ空间Ｅ中讨论如下问题ｄｕｄｔ＋１ｔσＡｕ＝Ｊ（ｕ），０＜ｔＴ，ｌｉｍｔ→０＋ｕ（ｔ）＝０，其中ｕ：（０，Ｔ］Ｅ，Ａ是与ｔ无关的线性算子．（－Ａ）是Ｅ上Ｃ０半群｛Ｔ（ｔ）｝ｔ０的无穷小生成元，常数σ１，Ｊ是一个非线性映射ＥＪ→Ｅ．它满足局部Ｌｉｐｓｃｈｉｔｚ条件．我们证明了当其Ｌｉｐｓｃｈｉｔｚ常数ｌ（ｒ）满足一定条件时．问题（Ｓ）有局部解，且在某函类中解唯一．设Ｊ（ｕ）＝｜ｕ｜γ－１ｕ＋ｆ（ｘ）（γ＞１），Ｅ＝Ｌｐ，ＥＪ＝Ｌｐγ时得到了与Ｗｅｉｓｌｅｒ［２］在非奇异情形类似的结果．     

数值求解延时微分方程的步长准则

１．引言 用一个数值方法求解下列延时微分方程：其中, ｆ： Ｒ × Ｃｄ × Ｃｄ → Ｃｄ为给定函数, Ｕ（ｔ）当上＞ ０时为未知函数,τ＞ ０为常数延时量,ф（ｔ）∈Ｃｄ为已知向量值函数．为了检验一个数值方法的数值稳定性,常用如下试验方程：来观察方法的数值稳定性,这里ａ,ｂ∈Ｃ（Ｃ为复数集）为已知常数,ф（ｔ）为给定的连续函数（ｔ≤０）． 定义 １［2］．延时微分方程（简记为ＤＤＥＳ）（３）被称为是渐近稳定的,如果（３）的每一个解Ｕ（ｔ）满足 方程(３)的特征方程为： 定义 ２［２］．一数值方法求解ＤＤＥＳ称为…     

关于行－列可交换过程的一致收敛性

该文平行于［１］中的Ｕ－过程的定义，定义了如下的行一列可交换过程：其中，为一族定义在［０，１］３上实值可测函数，Ｘｉ，Ｙｊ，Ｕｉ，ｊ，ｉ≥１，ｊ≥１为相互独立的随机变量，且均服从于［０，１］区间上的均匀分布．我们在适当的条件下，得到了这种两参数过程Ｓｍ，ｎ（ｆ），ｆ∈的强大数律．并且由文中的Ｄｅｃｏｕｐｌｉｎｇ不等式，上述结果可推出［１］中Ｕ－过程矩形部分和的强大数律．     

Dirichlet多项式翻转公式的一个新结果

设ｆ（ｘ）是一个实函数，ｆ（ｘ＋ｉｙ）在某个包含区间［ａ，ｂ］的某区域内解析，则Σ↓α〈ｎ≤βｅ（ｆ（ｎ））＝ｅ（－１／８）Σ↓α〈ｎ≤β│ｆ″（ｘｎ）│＾－１／２ｅ（ｆ（ｘ）－ｎｘｎ）＋△（ｆ，ａ，ｂ）其中α，β，ｘｎ的定义是（１），余项△是（９），它改进了文［１］，［２］的结果。     

-混合随机变量的泛函型Erds-Rényi大数定律

本文证明了■－混合随机变量的Ｅｒｄｏｓ－Ｒｅｎｙｉ大数定律特别地，以概率１，Ｗ(Ｎ，ｎ)＝的极限点集是相对紧的并与函数空间的大偏差速率函数相联系，其中 是取值于 Ｂａｎａｃｈ空间的■－混合随机变量， ｈ（Ｎ）＝［ｃｌｏｇＮ］．     

Stability of Periodic Solutions of Ordinary Differential Equations in Banach Spaces

§１．ＤｅｆｉｎｉｔｉｏｎｓａｎｄＮｏｔａｔｉｏｎｓＬｅｔＥｂｅａｒｅａｌＢａｎａｃｈｓｐａｃｅ,ａｎｄｌｅｔｘ,ｙ∈Ｅ．Ｔｈｅｄｉｒｅｃｔｉｏｎａｌｄｅｒｉｖａｔｉｖｅ［ｘ,ｙ］－ｏｆｘａｎｄｙｉｓｄｅｆｉｎｅｄｂｙ（ｆｏｒｍｏｒｅｄｅｔａｉｌｓｓ...     

涉及微分多项式的亚纯函数的增长性

本文讨论了具有亏值的超越亚纯函数的增长性,证明了如下定理：设有下级为有穷的超越亚纯函数ｆ（ｚ）具有一亏值（有穷或否）,（ｚ）＝ｆｎＱ［ｆ］＋ Ｐ［ｆ］为ｆ（ｚ）的微分多项式,其中Ｑ［ｆ］（≠０）与Ｐ［ｆ］（≠０）的各项系数均为级不超过的亚纯函数,且 Ｐ［ｆ］的权 ．又△（θｊ）（ｊ＝ １;２;…;ｑ; θｑ+1＝θ1+2π）为条从原点出发的半直线;且对有：其中为不依赖于的非负常数,则必有ｆ｛ｚ｝的级ｍａｘ,其中     

Instructions for Authors

<正>Submission Authors must use LaTeX for typewriting,and visit our website www.actamath.com to submit your paper.Our address is Editorial Office of Acta Mathematica Sinica,Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100190,P.R.China.     

THE 8~(th) INTERNATIONAL CONGRESS ON INDUSTRIAL AND APPLIED MATHEMATICS

正August 10-14,2015Beijin,China The International Congress on Industrial and Applied Mathematics(ICIAM)is the premier international congress in the field of applied mathematics held every four years under the auspices of the International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists     

FRACTIONAL INTEGRALS OF THE WEIERSTRASS FUNCTIONS： THE EXACT BOX DIMENSION

The present paper investigates the fractal structure of fractional integrals of Weierstrass functions. The ezact box dimension for such functions many important cases is established. We need to point out that, although the result itself achieved in the present paper is interesting, the new technique and method should be emphasized. These novel ideas might be useful to establish the box dimension or Hausdorff dimension (especially for the lower bounds) for more general groups of functions.     

English Series

正1 Aims and Scope Acta Mathematicae Applicatae Sinica(English Series)is a quarterly journal established by the Chinese Mathematical Society.The journal publishes high quality research papers from all branches of applied mathematics,particularly welcomes those from partial differential equations,computational mathematics,applied probability,mathematical finance,statistics,dynamical systems,optimization and management science.     

CHINESE ANNALS OF MATHEMATICS SERIES B Volume 35 · 2014 TOTAL CONTENTS

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Congruences,ideals and annihilators in standard QBCC-algebras

We characterize congruence lattices of standard QBCC-algebras and their connection with the congruence lattices of congruence kernels. Work on the paper was supported by Council of Czech Government No J14/98:153100011.     

A decomposition of continuity via ideals

A new class of sets in ideal topological spaces is introduced and using these sets, a decomposition of continuity is given.      

When a compact (countably compact) set is closed. II

We obtain (a) necessary and sufficient conditions and (b) sufficient conditions for a compact (countably compact) set to be closed in products (sequential products) and subspaces (sequential subspaces) of normal spaces. As a consequence of these, sufficient conditions are obtained for (i) the closedness of arbitrary (countable) union of closed sets and (ii) the equality of the union of the closures and the closure of the union of arbitrary (countable) families of sets in these spaces. It is also shown that these results do not hold for quotients of even T ₄,-spaces.     

ASYMPTOTIC BEHAVIOR OF ECKHOFF＇S METHOD FOR FOURIER SERIES CONVERGENCE ACCELERATION

The current paper considers the problem of recovering a function using a limited number of its Fourier coefficients. Specifically, a method based on Bernoulli-like polynomials suggested and developed by Krylov, Lanczos, Gottlieb and Eckhoff is examined. Asymptotic behavior of approximate calculation of the so-called ＂jumps＂ is studied and asymptotic L2 constants of the rate of convergence of the method are computed.