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MINIMAL: 作品数：618被引量：907H指数：13; 导出分析报告; 相关领域：医药卫生更多>>; 相关作者：曹光鲁国尧吕德峰左洪福蔡景更多>>; 相关机构：东南大学华南师范大学华中科技大学南京大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>

Minimal systems of generators for central division algebra and semi-simple algebra: 《Chinese Science Bulletin》1998年第21期1777-1780,共4页QIU Qizhang 1 and SUN Ling 2 1. Department of Mathematics, Wuhan University, Wuhan 430072, China 2. Department of Information science, Wuhan University, Wuhan 430072, China.; Suppose that F is a field of characteristic zero and (ⅰ) D is a finite-dimensional central division algabra over F; (ⅱ) A is a finite-dimensional semi-simple algabra over F. It is proved that as F-algebras, D and A ...; 关键词：CENTRAL DIVISION ALGEBRA semi-simple ALGEBRA generator MINIMAL system of generators.

Minimal symmetric submanifolds in compact Riemannian symmetric spaces: 《Chinese Science Bulletin》1998年第21期1786-1789,共4页LIANG Ke 1 and JIN Quanqin 1,2 1. Department of Mathematics, Nankai University, Tianjin 300071, China 2. Department of Mathematics, Hebei University, Baoding 071002, China; ThisworkwassupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .197310 0 4)andtheNaturalScienceFoundationofHebeiProvince; A necessary and sufficient condition for a symmetric submanifold to be minimal in its ambient compact Riemannian symmetric space is given. By this condition a complete classification of non- minimal symmetric submanif...; 关键词：SYMMETRIC space SYMMETRIC SUBMANIFOLD mean CURVATURE vector.

Conformal minimal two-spheres with constant Gauss curvature in U(3): 《Chinese Science Bulletin》1998年第12期994-997,共4页Jiao Xiaoxiang Peng Jiagui; theNationalNaturalScienceFoundationofChina (GrantNo.195 310 5 0 ); A complete classification of all conformal minimal 2-sphere with constant Gauss curvature is given in U(3).; 关键词：CONFORMAL MINIMAL GAUSS curvature.

The proof of FFD(L)≤11/9OPT(L) +7/9被引量：2: 《Chinese Science Bulletin》1997年第15期1262-1265,共4页LI Rongheng, YUE Minyi1. Department of Mathematics, Hunan Normal University, Changsha 410081, China 2. Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 100080, China; THE one-dimensional bin-packing problem is defined as follows: for a given list L={p₁, p₂,…, P_n}, where 0<p_i≤1 denotes the item and its size as well, we are to pack all...; 关键词：BIN-PACKING MINIMAL counter-example weigtht-function FFD-algorithm.

Equations of real quadratic fields and semi-simple and minimal continued fractions被引量：2: 《Chinese Science Bulletin》1995年第21期1761-1765,共5页张贤科; the National Natural Science Foundation of China.; By the theory of semi-simple (generalized) continued fractions, the Diophantine equation x^2-dy^2=c (1) will be studied, and simple criteria for solvability and explicit sets of solutions will be given.These could be ...; 关键词：QUADRATIC field DIOPHANTINE equation continued fraction.

Distal flows with pseudo-orbit tracing property: 《Chinese Science Bulletin》1995年第19期1585-1588,共4页何连法王在洪; Project supported by the National Natural Science Foundation of China; In ref. [1] Smale pointed out that the existence of minimal sets is an important problem. The main problem is to determine what kind of spaces are minimal with respect to some flows on it. A comprehensive report of th...; 关键词：DISTAL FLOW pseudo-orbit TRACING property MINIMAL flow.

Totally real minimal surfaces in complex Grassmannians: 《Chinese Science Bulletin》1995年第14期1163-1166,共4页莫小欢; Given a harmonic map φfrom a Riemann surface M into the complex projectivespace CP^n, by using the -transform associated to the map φ, Chern et al. obtained the se-quence of harmonic maps. We call it a harmonic sequ...; 关键词：MINIMAL SURFACE COMPLEX GRASSMANNIAN totally real.

Some remarks on imaginary roots: 《Chinese Science Bulletin》1995年第10期793-796,共4页张贺春; Imaginary root is an important concept in Kac-Moody algebras, which presents the naturaldifference between Kac-Moody algebras and finite dimensional simple Lie algebras. In thisnote, we will first describe the strictl...; 关键词：STRICTLY imaginary ROOT MINIMAL imaginary ROOT WEIGHT

On scalar curvature for totally real minimal submanifolds in CP^(n): 《Chinese Science Bulletin》1995年第8期621-626,共6页沈一兵东瑜昕郭孝英; Project supported by the National Natural Science Foundation of China and the Science Foundation of Zhejiang Province.; Let CP^n be a complex projective n-space with the Fubini-Study metric of constantholomorphic sectional curvature c,and M be an n-dimensional compact totally real minimalsubmanifold in CP^n. It is known from refs. [1-3...; 关键词：totally real MINIMAL SUBMANIFOLD SCALAR CURVATURE CURVATURE pinching.

Infinite Dimensional Widths and Optimal Recovery of Some Smooth Function Classes of L_p(R) in Metric L(R): 《Chinese Science Bulletin》1993年第20期1678-1682,共5页刘永平; Project supported by the National Natural Science Foundation of China.; 1 Introduction Let r be a natural number, P_r（t）=（t-t_j）, t_j∈R, j=1,…, r, and P_r（D）（D=-d/（dt）） be the induced differential operator of P_r（t）. Let 1≤p...; 关键词：INFINITE dimensional width OPTIMAL recovery OPTIMAL SUBSPACE MINIMAL information diameter algorithm sampling point

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