检索结果-南通市图书馆

CONTINUITY OF FUZZY LINEAR OPERATORS

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 1988年第1期8卷 71-77页

作者：吴从炘马明 Harbin Institute of TechnolOgy

In this paper, we introduce a new definition of fuzzy linear operator and obtain some necessary and sufficient conditions which a fuzzy linear operator between two fuzzy normed spaces is *** properties of fuzzy normed... 详细信息

关键词： FI CONTINUITY OF FUZZY LINEAR OPERATORS

ON　k-Smooth,k-Very　Smooth　and　K-Strongly　Smooth　Banach　Spaces

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Harbin Institute of Technology(New Series) 1998年第1期5卷 6-9页

作者： Su Ya La Tu wu congxin

ＯＮｋ－Ｓｍｏｏｔｈ，ｋ－ＶｅｒｙＳｍｏｏｔｈａｎｄＫ－ＳｔｒｏｎｇｌｙＳｍｏｏｔｈＢａｎａｃｈＳｐａｃｅｓＷＵＣｏｎｇｘｉｎ（吴从）（Ｄｅｐｔ．ｏｆＭａｔｈｅｍａｔｉｃｓ，ＨａｒｂｉｎｌｎｓｔｉｔｕｔｅｏｆＴｅｃｈ... 详细信息

ＯＮｋ－Ｓｍｏｏｔｈ，ｋ－ＶｅｒｙＳｍｏｏｔｈａｎｄＫ－ＳｔｒｏｎｇｌｙＳｍｏｏｔｈＢａｎａｃｈＳｐａｃｅｓＷＵＣｏｎｇｘｉｎ（吴从）（Ｄｅｐｔ．ｏｆＭａｔｈｅｍａｔｉｃｓ，ＨａｒｂｉｎｌｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙ，Ｈａｒｂｉｎ，１５０...

关键词： k-smooth spaces k-very smooth (k-very convex) spaces k-strongly smooth (k- strongly convex) spaces k-exposed (k-strongly exposed

K-uniformly rotund spaces and k-uniformly smooth spaces

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1998年第2期43卷 92-95页

作者： Suyalatu 1 and wu congxin 2 1. Department of Mathematics,Inner Mongolia Normal University, Huhhot 010022, China 2. Department of Mathematics, Harbin Institute of Technology, Harbin 150006, China Department of Mathematics Inner Mongolia Normal University Huhhot China Department of Mathematics Harbin Institute of Technology Harbin China

The conception of k_uniform smoothness (KUS) is introduced. It is the extension of the conception of uniform smoothness. It is proved that the k_uniform smoothness and Sullivan’s K_uniform rotundity (KUR) are the daul notions. X+* is a KUR space if and only if X is a KUS space, X+* is a KUS space if and only if X is a KUR space. If X is a KUS space, then X is a (K+1)US space. It is also proved that the KUS space includes the Nan’s k_strongly smooth space.

关键词： K_uniform smoothness K_uniform convexity.

ABSTRACT FUNCTIONS OF BOUNDED VARIATION AND ABSOLUTE CONTINUITY

在线全文

学校读者我要写书评

暂无评论

Journal of Mathematical Study 1994年第1期 14-18页

作者： wu congxin Liu Tiefu(Harbin Institute of TechnologyHarbin 150001)

ＡＢＳＴＲＡＣＴＦＵＮＣＴＩＯＮＳＯＦＢＯＵＮＤＥＤＶＡＲＩＡＴＩＯＮＡＮＤＡＢＳＯＬＵＴＥＣＯＮＴＩＮＵＩＴＹ￥ＷｕＣｏｎｇｘｉｎ；ＬｉｕＴｉｅｆｕ（ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙＨａｒｂｉ...

ＡＢＳＴＲＡＣＴＦＵＮＣＴＩＯＮＳＯＦＢＯＵＮＤＥＤＶＡＲＩＡＴＩＯＮＡＮＤＡＢＳＯＬＵＴＥＣＯＮＴＩＮＵＩＴＹ￥ＷｕＣｏｎｇｘｉｎ；ＬｉｕＴｉｅｆｕ（ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙＨａｒｂｉｎ１５０００１）Ａｂｓｔｒａｃｔ：...

关键词：

Fuzzy metric and convergences based on the symmetric difference

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1998年第4期43卷 349-349页

作者： wu congxin Li Fachao Ha Minghu Qiu Jiqing Harbin Inst Technol Dept Math Harbin 150001 Peoples R China

Convex Functions, Subdifferentiability and Renormings

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 1998年第1期14卷 47-56页

作者： Cheng Lixin wu congxin Xue Xiaoping Yao Xiaobo Nankai Institute of Mathematics, Nankai University, Tianjin 300071, China Department of Mathematics, Harbin Institute of Technology, Harbin 150006, China Nankai Institute of Mathematics Nankai University Tianjin 300071 China Department of Mathematics Harbin Institute of Technology Harbin 150006 China

This paper through discussing subdifferentiability and convexity of convex functions shows that a Banach space admits an equivalent uniformly [locally uniformly, strictly] convex norm if and only if there exists a continuous uniformly [locally uniformly, strictly] convex function on some nonempty open convex subset of the space and presents some characterizations of super-reflexive Banach spaces.

关键词： Convex function Differentiabilit Renorming Uniformly convex Banach space

Perfect Matrix Algebras ∑(λ)(Ⅱ)-AK-Property

在线全文

学校读者我要写书评

暂无评论

Northeastern Mathematical Journal 2001年第4期17卷 392-396页

作者：吴从炘 Department of Mathematics Harbin Institute of Technology Harbin 150001

In this paper, we introduce the concept of AK-property for the perfect ma-trix algebras ∑(λ) and give some characterizations of∑(λ)possessing AK-property.

关键词： perfect sequence space perfect matrix algebra AK-property row-AK-property column-AK-property

Extreme points and rotundity of Orlicz-Musielak sequence spaces

在线全文

学校读者我要写书评

暂无评论

Journal of Mathematical Research with Applications 1988年第2期 195-200页

作者： wu congxin, Chen Shutao(Harbin Institute of Technology) (Harbin Techer’s Univ.)

*** and ***[1-10] present a series of work concerning geometry ofsequence Orlicz-Musielak spaces. This paper continues their work, to give a character of extremepoints of the unit balls of sequence Orlicz-Musielak spa... 详细信息

关键词： Extreme points and rotundity of Orlicz-Musielak sequence spaces

A RIEMANN-TYPE DEFINITON OF THE BOCHNER INTEGRAL

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Mathematical Study 1994年第1期 32-36页

作者： wu congxin Yao Xiaobo(Dept. of Mathematics,Harbin Institute of TechnologyHarbin, 150001)

ＡＲＩＥＭＡＮＮ－ＴＹＰＥＤＥＦＩＮＩＴＯＮＯＦＴＨＥＢＯＣＨＮＥＲＩＮＴＥＧＲＡＬ￥ＷｕＣｏｎｇｘｉｎ；ＹａｏＸｉａｏｂｏ（Ｄｅｐｔ．ｏｆＭａｔｈｅｍａｔｉｃｓ，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇ... 详细信息

ＡＲＩＥＭＡＮＮ－ＴＹＰＥＤＥＦＩＮＩＴＯＮＯＦＴＨＥＢＯＣＨＮＥＲＩＮＴＥＧＲＡＬ￥ＷｕＣｏｎｇｘｉｎ；ＹａｏＸｉａｏｂｏ（Ｄｅｐｔ．ｏｆＭａｔｈｅｍａｔｉｃｓ，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙＨａｒｂｉｎ，１５０００１）Ａｂ...

关键词： strong McShane integral Bochner integral strongly absolute continuity.