期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
广义Feller算子对-Lipschitz函数类的逼近常数
1
作者 徐吉华 《湖北大学学报(自然科学版)》 CAS 1998年第1期1-5,共5页
定义出φLipschitz函数类,利用概率工具特别是中心极限定理改进了渐近展开方法,进而求得一大类广义Feler算子的类逼近阶与局部Nikol’ski常数.
关键词 广义 FELLER算子 李普希兹函数 逼近常数
下载PDF
Advancing the Backtrack Optimization Technique to Obtain Forecasts of Potential Crisis Periods 被引量:1
2
作者 E. G. Lisgara G. I. Karolidis G. S. Androulakis 《Applied Mathematics》 2012年第10期1538-1551,共14页
Financial crisis is an unfortunate reality that overshadows any financial system regardless its profitability and the level it functions. The appearance of crises across financial markets, especially during the 1990s ... Financial crisis is an unfortunate reality that overshadows any financial system regardless its profitability and the level it functions. The appearance of crises across financial markets, especially during the 1990s that the internationalized markets adopted a rather approachable character, imposed severe costs in financial and social systems. With this paper is proposed the generation of a future interval of time that is vulnerable to enclose the burst of a financial crisis. A time series consisted of approximations of the local Lipschitz constant is examined and in the proposed forecasting approach this constant holds the crisis indicator role. Further the application of two different optimization techniques over the Lipschitz-made time series results to the generation of a future period of time;this interval is likely to envelop the burst of a forthcoming crisis. The usage of a future interval of time empowers the predicting ability of the methodology by providing warning signs priory to the actual crisis burst. To this direction, the obtained results offer strong evidence that the method may be characterized as an Early Warning System (EWS) for financial crisis prediction. 展开更多
关键词 FINANCIAL CRISIS ALERT Entrapping Method local lipschitz constant
下载PDF
Some relations between Hausdorff-dimensions and entropies
3
作者 代雄平 周作领 耿祥义 《Science China Mathematics》 SCIE 1998年第10期1068-1075,共8页
Some relations between the Hausdorff_dimensions and the entropies for expansive homeomorphisms on compact metric spaces are obtained.
关键词 expansive HOMEOMORPHISM HAUSDORFF_DIMENSION entropy LOC al lipschitz constant.
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部