国家自然科学基金(61179031)

作品数:8被引量:6H指数:2
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相关作者:弗洛斯孙华飞段晓敏更多>>
相关机构:北京理工大学杜克大学大连交通大学北京工业大学更多>>
相关期刊:《Acta Mathematicae Applicatae Sinica》《Acta Mathematica Scientia》《北京理工大学学报》《Defence Technology(防务技术)》更多>>
相关主题:信息几何POSITIVEMATRICESMANIFOLDPOSITIVE_DEFINITE更多>>
相关领域:理学电子电信自动化与计算机技术更多>>
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Multiple Periodic Solutions of Differential Delay Equations with 2k-1 Lags
《Acta Mathematicae Applicatae Sinica》2020年第2期390-400,共11页Lin LI Hua-fei SUN Wei-gao GE 
supported by the National Natural Science Foundations of China(No.61179031).
In this paper,we study the periodic solutions to a type of differential delay equations with 2 k-1 lags.The 4 k-periodic solutions are obtained by using the variational method and the method of Kaplan-Yorke coupling s...
关键词:DIFFERENTIAL DELAY EQUATION PERIODIC solutions CRITICAL point theory VARIATIONAL method 
LIE-TROTTER FORMULA FOR THE HADAMARD PRODUCT
《Acta Mathematica Scientia》2020年第3期659-669,共11页Jing WANG Yonggang LI Huafei SUN 
H.Sun is supported by NSFC(61179031);J.Wang is supported by General Project of Science and Technology Plan of Beijing Municipal Education Commission(KM202010037003).
Suppose that A and B are two positive-definite matrices,then,the limit of(A^p/2B^pA^p/2)1/p as p tends to 0 can be obtained by the well known Lie-Trotter formula.In this article,we generalize the usual product of matr...
关键词:Lie-Trotter formula reciprocal Lie-Trotter formula Hadamard product positive-definite matrix 
Application of gradient descent algorithms based on geodesic distances被引量:1
《Science China(Information Sciences)》2020年第5期172-182,共11页Xiaomin DUAN Huafei SUN Linyu PENG 
National Science and Technology Major Project of China(Grant No.2016YFF02030012);National Natural Science Foundation of China(Grant No.61401058);partially supported by National Natural Science Foundation of China(Grant No.61179031);Natural Science Foundation of Liaoning Province(Grant No.20180550112);supported by JSPS Grant-in-Aid for Scientific Research(Grant No.16KT0024);the MEXT“Top Global University Project”;Waseda University Grant for Special Research Projects(Grant Nos.2019C-179,2019E-036);Waseda University Grant Program for Promotion of International Joint Research。
In this paper, the Riemannian gradient algorithm and the natural gradient algorithm are applied to solve descent direction problems on the manifold of positive definite Hermitian matrices, where the geodesic distance ...
关键词:system control RIEMANNIAN GRADIENT ALGORITHM natural GRADIENT ALGORITHM Karcher mean TOEPLITZ POSITIVE definite HERMITIAN matrix 
统计流形上的主丛结构被引量:2
《北京理工大学学报》2018年第4期437-440,共4页孙华飞 张通 韩希武 李帝东 
国家自然科学基金资助项目(61179031)
在统计流形上引入主丛的概念.首先介绍流形上主丛的一些基础知识,然后研究统计流形上标架丛的α结构.最后利用给出的方法对二元正态分布流形进行具体的计算.
关键词:主丛 信息几何 统计流形 
信息几何与控制理论
《动力系统与控制》2016年第4期135-142,共8页韩希武 孙华飞 张真宁 
国家自然科学基金项目(No.61179031).
本文首先简要介绍信息几何的基本内容,包含随机的情形和非随机的情形。通过引入Fisher信息矩阵、对偶联络的引入,来处理随机的统计流形;通过利用一般线性群的李子群以及子流形的理论,建立矩阵信息几何理论。然后介绍信息几何在控制理论...
关键词:信息几何 矩阵信息几何 Fisher信息矩阵 LIE群 
The α-Geometric Structures on Manifold of Positive Definite Hermite Matrices被引量:2
《Acta Mathematica Sinica,English Series》2014年第12期2137-2145,共9页Xiao Min DUAN Hua Fei SUN Lin Yu PENG 
Supported by Natural Science Foundations of China(Grant No.61179031 and 61401058)
Geometric structures of a manifold of positive definite Hermite matrices are considered from the viewpoint of information geometry.A Riemannian metric is defined and dual α-connections are introduced.Then the fact th...
关键词:Positive definite Hermite matrices information geometry optimal approximation 
稳定的复数域上状态反馈系统的几何结构
《北京理工大学学报》2014年第10期1081-1084,1100,共5页弗洛斯 段晓敏 孙华飞 邵水布 
国家自然科学基金项目资助项目(61179031)
从信息几何的角度使用新的方法研究稳定的复数域上的状态反馈增益系统.首先,给出所有稳定的状态反馈增益集合的参数化.进而,可知稳定的状态反馈增益集合微分同胚于满足一定代数条件的正定Hermite矩阵和反Hermite矩阵的笛卡尔积;其次,探...
关键词:复数域 状态反馈 几何结构 
Research Progress of the Algebraic and Geometric Signal Processing被引量:1
《Defence Technology(防务技术)》2013年第1期21-30,共10页TAO Ran LI Bingzhao SUN Huafei 
Sponsored by Program for Changjiang Scholars and Innovative Research Team in University ( IRT1005 );the National Natural Science Founda-tions of China ( 61171195 and 61179031);Program for New Century Excellent Talents in University ( NCET-12-0042)
The investigation of novel signal processing tools is one of the hottest research topics in modern signal processing community. Among them, the algebraic and geometric signal processing methods are the most powerful t...
关键词:signal processing algebraic signal processing geometric signal processing fractional signal processing 
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