一类脉冲时滞抛物方程组边值问题的振动准则

考虑了一类带强迫项的脉冲时滞抛物方程组,利用脉冲时滞微分不等式,获得了该类方程组的解强迫振动的若干充分判据.     

非线性脉冲时滞抛物型偏微分方程的强迫振动性

考虑一类具强迫项的非线性脉冲时滞抛物型偏微分方程，利用脉冲时滞微分不等式，获得了该类方程的解强迫振动的若干充分判据。     

高阶脉冲中立型偏泛函微分方程的强迫振动性

研究一类具高阶Laplace算子的高阶脉冲非线性中立型偏泛函微分方程的强迫振动性,利用Green公式和微分不等式方法将所讨论的脉冲中立型偏微分方程转化为脉冲中立型微分不等式的问题,获得了这类方程在三类不同边值条件下所有解强迫振动的若干充分条件.     

具连续分布滞量的脉冲抛物型方程的振动性质

讨论一类具连续分布滞量的非线性脉冲抛物型方程的振动性质,利用平均值方法获得了该类方程所有解振动的若干充分判据.所得结果充分地表明,振动是由滞量和脉冲引起的.     

带强迫项的n阶脉冲微分方程的振动性与渐近性

给出引理,解决了一类带强迫项的n阶脉冲微分方程的非振动解与其各阶导数的符号关系,得到其振动性与渐近性的判别准则,并举例说明准则的有效性.     

一类带阻尼项的二阶强迫脉冲微分方程的区间振动准则

研究了一类带阻尼项的二阶强迫脉冲微分方程的区间振动性质,利用广义Riccati变换、不等式技巧,建立了对该类方程的El-Sayed型和Kameneve型新的振动准则.结果改进和推广了最近文献中的一些相应结论.     

高阶偏泛函微分方程系统解的强迫振动性

本文研究两类高阶偏泛函微分方程系统的强迫振动性,利用微分不等式和积分技巧,获得了这两类系统解的强迫振动的若干充分判据,所得结果推广和包含了文[1]的相应结果.     

脉冲扰动对非线性时滞双曲型分布参数系统振动的影响

研究一类具高阶Laplace算子的非线性脉冲时滞双曲型分布参数系统在第三类边值条件下的振动性质,借助处理高阶Laplace算子的技巧和脉冲时滞微分不等式,建立了这类系统振动的若干新的显式充分判据.所得结论充分显示这种振动性是由于脉冲扰动和时滞效应所引起的.     

非线性脉冲中立型双曲方程的振动性

讨论非线性时滞脉冲中立型双曲方程的振动性质,利用平均值方法以及泛函微分不等式获得了该类方程在一类非线性边值条件下所有解振动的充分判据.结果表明,振动是由滞量和脉冲引起的.     

一类带脉冲扰动的抛物系统的(全振动性问题

研究一类带脉冲扰动的抛物系统的(全)振动性,利用脉冲微分不等式的某些结果,获得该类系统在Neumann边值条件下所有解(全)振动的若干充分条件,并通过一个例子加以阐明.所得结果充分地表明系统(全)振动是由脉冲扰动引起的.     

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.      

On a class of self-similar processes with stationary increments in higher order Wiener chaoses

We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes. This allows us to compute the pointwise and local Hölder regularity of sample paths and to analyse their behaviour at infinity. We also provide some results on the Hausdorff dimension of the range and graphs of multidimensional anisotropic self-similar processes with stationary increments defined by multiple Wiener–Itô integrals.     

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.