PIECEWISE

作品数：318被引量：354H指数：7
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相关作者：刘敏王旭黄博许雪峰廖斌更多>>
相关机构：重庆交通大学南京理工大学成都东软信息技术学院湖北大学更多>>
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On a conjecture in Moreau-Yosida approximation of a nonsmooth convex function
《Chinese Science Bulletin》1997年第17期1423-1426,共4页Sun, DF Han, JY 
CONSIDER minf(x) (1) where f: R^n→ [-∞, +∞] is an extended valued closed proper convex function. The Moreau-Yosida approximation F_λ of f is defined
关键词：CONVEX function Moreau-Yosida APPROXIMATION PIECEWISE smooth. 
Oscillations of a delay differential equation with piecewise constant arguments被引量：1
《Chinese Science Bulletin》1996年第9期709-713,共5页王幼斌 燕居让 
Science Foundation of Shanxi Province for the Young;Science Foundation of Taiyuan Heavy Machinary Institute.
1 Main results Consider the differential-differenee equaionx’(t)+px(t-1)+qx([t-1]) =0, (1)where p,q∈(0,∞) and[] denotes the greatst-integer function. Recently the oscillations of eq. (1) have been discussed and sev...
关键词：OSCILLATION PIECEWISE CONSTANT arguments improved Z-transform. 
THE DIMENSION OF THE SPLINE SPACE S_k~μ(△_n)(k≥2^(2n-2)(3μ+1 )+ 1)
《Chinese Science Bulletin》1992年第5期436-437,共2页施锡泉 
Let Dn（?）IRn be a simply connected and bounded region having piecewise linear boundary, △n a simplicial partition of Dn, and Sji （0≤i≤n, 1≤j≤T<...
关键词：PARTITION PIECEWISE connected simply SPACE singular ENDPOINT SPLINE INCIDENT 
THE EXISTENCE CONDITIONS OF SPACE S_2~1(■)
《Chinese Science Bulletin》1989年第23期2015-2015,共1页施锡泉 王仁宏 
Let Dn（?）Rn be a bounded region with piecewise linear boundary, Δn an arbitrary simplicial partition of Dn, Sji （i=0, 1, …, n; j=1, 2, …T1）all o...
关键词：PARTITION PIECEWISE STEPS arbitrary SPACE REFINING interior 甲加 CONSTANTS 
B-NET REPRESENTATION OF MULTIVARIATE SPLINES被引量：1
《Chinese Science Bulletin》1988年第10期807-811,共5页贾荣庆 
The use of Bernstein-Bézier net in the study of bivariate splines was initiated by, G. Farin. In [1], Farin used Bèzier coordinates to express C^r continuity condition for bivariate splines. In [2], de Boor and H(?)...
关键词：COORDINATES CONTINUITY MULTIVARIATE CUBIC parti directional initiated TRIANGULATION PIECEWISE polynomial 
STRUCTURE OF THE ATTRACTING SET OF A PIECEWISE LINEAR TWO-DIMENSIONAL MAP
《Chinese Science Bulletin》1987年第15期1078-1079,共2页朱照宣 刘曾荣 
The piecewise linear H?non map (x,y)→(1-a|x|+by,x) was treated by Lozi, T?l et al. We analyze the structure of its attracting set for a=8/5 and b=9/25 using the notations of symbolic dynamics.
关键词：attracting PIECEWISE invariant SYMBOLIC posed SADDLE inverse MANIFOLD INFINITE UNSTABLE 
THE SPLINE SPACES WITH BOUNDARY CONDITIONS ON NONUNIFORM TYPE-2 TRIANGULATION
《Chinese Science Bulletin》1985年第7期858-861,共4页王仁宏 何天晓 
In the past few years interest has been drawn to spaces of piecewise polynomials defined on partitions of a plane region Ω. While the study of such spaces for general partitions is extremely difficult, considerable p...
关键词：PIECEWISE satis partition drawn confined extremely TRIANGULATION drawing CORNER rotation 
PIECEWISE-POLYNOMIAL APPROXIMATIONS OF ORLICZSOBOLEV SPACES W^mE_A
《Chinese Science Bulletin》1981年第7期667-,共1页肖应昆 
We denote by π（x） the characteristi function of the interval （0, 1）, πk=h-1πx/h and π（?）（x）= h-1π（x/h-j）（0≤j≤n-1,h=n/1）. For w∈EA, construct Rhu = （Rhw）f, where （Rkw）f.
关键词：王初 贵一 比加 为己 
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