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J. Mogyoródi 《Periodica Mathematica Hungarica》1977,8(3-4):275-279
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Yu Lin 《数学物理学报(B辑英文版)》2009,29(2)
A generalized Rosenthal's inequality for Banach-space-valued martingales is proved, which extends the corresponding results in the previous literatures and character-izes the p-uniform smoothness and q-uniform convexity of the underlying Banach space. As an application of this inequality, the strong law of large numbers for Banach-space-valued martingales is also given. 相似文献
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Let X be a Banach space and C a bounded, closed, convex subset of X. C is said to have the weak-approximate fixed point property if for any norm-continuous mapping , there exists a sequence {xn} in C such that (xn−fn(xn)) converges to 0 weakly. It is known that every infinite-dimensional Banach space with the Schur property does not have the weak-approximate fixed point property. In this article, we show that every Asplund space has the weak-approximate fixed point property. Applications to the asymptotic fixed point theory are given. 相似文献
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Zhao Yong Xia Yonghui 《Annals of Differential Equations》2008,(4):498-505
In this paper, we study the existence and stability of an equilibrium of discrete-time Cohen-Grossberg BAM Neural Networks with delays. We obtain several sufficient conditions ensuring the existence and stability of an equilibrium of such systems, using discrete Halanay-type inequality and vector Lyapunov methods. In addition, we show that the proposed sufficient condition is independent of the delay parameter. An example is given to demonstrate the effectiveness of the results obtained. 相似文献
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蓝家诚 《浙江大学学报(理学版)》1994,21(2):131-138
本文在齐型空间上考虑了Muckenhoupt,B. }'}提出的间题,得到齐型空间上极大函数的双权不等式,推广了周民强[}z7的结果. 相似文献
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利用广义投影矩阵,对求解无约束规划的三项记忆梯度算法中的参数给一条件,确定它们的取值范围,以保证得到目标函数的三项记忆梯度广义投影下降方向,建立了求解非线性等式和不等式约束优化问题的三项记忆梯度广义投影算法,并证明了算法的收敛性.同时给出了结合FR,PR,HS共轭梯度参数的三项记忆梯度广义投影算法,从而将经典的共轭梯度算法推广用于求解约束规划问题.数值例子表明算法是有效的. 相似文献
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本文研究局部平方可积鞅的一种Rosenthal不等式中常数的性态,证明了其系数与离散参数鞅情形有相同的增长阶. 相似文献
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Three Series Theorem for Independent Random Variables under Sub-linear Expectations with Applications 下载免费PDF全文
In this paper, motived by the notion of independent and identically distributed random variables under the sub-linear expectation initiated by Peng, we establish a three series theorem of independent random variables under the sub-linear expectations. As an application, we obtain the Marcinkiewicz's strong law of large numbers for independent and identically distributed random variables under the sub-linear expectations. The technical details are different from those for classical theorems because the sub-linear expectation and its related capacity are not additive. 相似文献
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