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On Approximation Properties of Modified Sázas-Mirakyan Operators via Jain Operators
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作者 Prashantkumar Patel Vishnu Narayan Mishra 《Analysis in Theory and Applications》 CSCD 2016年第3期232-241,共10页
In the present manuscript, we propose the modification of Jain operators which the generalization of Szasz-Mirakyan operators. These new class operators are linear positive operators of discrete type depending on a re... In the present manuscript, we propose the modification of Jain operators which the generalization of Szasz-Mirakyan operators. These new class operators are linear positive operators of discrete type depending on a real parameters. We give theorem of degree of approximation and the Voronovskaya asymptotic formula. 展开更多
关键词 positive linear operators Jain operators Szasz-Mirakyan operator.
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一类线性算子在Besov空间中的饱和性 被引量:2
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作者 张三敖 阎恩让 苏忍锁 《工程数学学报》 CSCD 北大核心 2004年第1期91-96,共6页
讨论了一类线性正算子在Besov空间中的饱和性
关键词 BESOV空间 饱和性 线性正算子
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Approximation for Certain Stancu Type Summation Integral Operator
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作者 Prerna Maheshwari 《Analysis in Theory and Applications》 CSCD 2018年第1期77-91,共15页
In the present paper, we consider Stancu type generalization of the summation integral type operators discussed in [15]. We apply hypergeometric series for obtaining moments of these operators. We also discuss about a... In the present paper, we consider Stancu type generalization of the summation integral type operators discussed in [15]. We apply hypergeometric series for obtaining moments of these operators. We also discuss about asymptotic formula and error estimation in terms of modules of continuity. 展开更多
关键词 linear positive operators hypergeometric series modulus of continuity.
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A New Class of Generalized Landau Linear Positive Operator Sequence and Its Properties of Approximation
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作者 陈湛本 石济民 《Chinese Quarterly Journal of Mathematics》 CSCD 1998年第1期29-43, ,共15页
In this paper two sequences of generalized Landau linear positive operators are introduced. They can be applied in approximating continuous functions with arbitrary growth order, defined on a finite interval or the wh... In this paper two sequences of generalized Landau linear positive operators are introduced. They can be applied in approximating continuous functions with arbitrary growth order, defined on a finite interval or the whole real axis. The properties of approximation are studied and their asymptotic formulae are presented. These results show that their degrees of approximation are the best among existing operator sequences of Landau type, for example, their degrees of approximation for C 2[0, 1] are O(1/n 2) but corresponding degree of ordinary Landau operators are only O(1/n). 展开更多
关键词 generalized Landau linear positive operators degree of approximation asymptotic formula
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Landau多项式算子与无界函数逼近
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作者 郑成德 《烟台师范学院学报(自然科学版)》 2000年第3期161-164,共4页
利用扩展乘数法构造了 Landau型多项式算子逼近全空间或有界集上无界函数的若干收敛定理 ,给出了具有一般性的结论 ,从而推广了已有文献的若干结果 .
关键词 Landau多项式算子 无界函数逼近 线性正算子
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一类奇异积分算子与无界连续函数逼近
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作者 郑成德 《大连铁道学院学报》 2000年第4期1-4,共4页
利用扩展乘数法建立了M算子逼近全实轴上任意无界连续函数的收敛性定理,给出了具有一般性的结论,从而推广了前人的若干重要定理。
关键词 线性正算子 无界函数逼近 扩展乘数法 一致收敛
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一列新的正线性算子的迭代逼近
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作者 王孝斌 《吉首大学学报(自然科学版)》 CAS 2005年第2期72-74,78,共4页
讨论了一列新的正线性算子的迭代组合,得到了其渐近公式和一个关于高阶光滑模的误差估计,从而改善了文献中已有的结果.
关键词 正线性算子 迭代组合 高阶光滑模 逼近阶
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A Note on the Statistical Approximation Properties of the Modified Discrete Operators
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作者 Reyhan Canatan 《Open Journal of Discrete Mathematics》 2012年第3期114-117,共4页
In this present paper, firstly, the modified positive operators and their discrete operators are constructed. Then, we investigate the statistical approximation properties and rates of convergence by using modulus of ... In this present paper, firstly, the modified positive operators and their discrete operators are constructed. Then, we investigate the statistical approximation properties and rates of convergence by using modulus of continuity of these positive linear operators. Finally, we obtain the rate of statistical convergence of truncated operators. 展开更多
关键词 Sequence of positive linear operators Bohman-Korovkin THEOREM Statistical Approximation MODULUS of CONTINUITY Rate of Convergence
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POSITIVE SOLUTIONS TO SECOND-ORDER SINGULAR NEUMANN BOUNDARY VALUE PROBLEM WITH PARAMETERS IN THE BOUNDARY CONDITIONS
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作者 Zhilong Li (School of Informational Management, Jiangxi University of Finance and Economics, Nanchang 330013) 《Annals of Differential Equations》 2009年第4期407-413,共7页
In this paper, we consider a class of nonlinear second-order singular Neumann boundary value problem with parameters in the boundary conditions. By the fixed point index, spectral theory of the linear operators, and l... In this paper, we consider a class of nonlinear second-order singular Neumann boundary value problem with parameters in the boundary conditions. By the fixed point index, spectral theory of the linear operators, and lower and upper solutions method, we prove that there exists a constant λ* > 0 such that for λ ∈ (0, λ * ), NBVP has at least two positive solutions; for λ = λ* , NBVP has at least one positive solution; for λ > λ* , NBVP has no solution. 展开更多
关键词 fixed point index lower and upper solutions method Neumann boundary value problem positive solutions spectral radius of linear operators
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广义Schwarz不等式
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作者 金丽霞 田立新 《江苏理工大学学报(自然科学版)》 1998年第1期104-108,共5页
证得广义正定p自共轭算子的广义Schwarz不等式.
关键词 自共轭算子 不等式 线性算子 正定算子
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NEW SUBCLASS OF ANALYTIC FUNCTIONS IN CONICAL DOMAIN ASSOCIATED WITH A LINEAR OPERATOR
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作者 Muhammed ARIF Shahid MAHMOOD +1 位作者 Janusz SOKOL Jacek DZIOK 《Acta Mathematica Scientia》 SCIE CSCD 2016年第3期704-716,共13页
The main object of the present paper is to investigate a number of useful properties such as inclusion relations, distortion bounds, coefficient estimates, subordination results, the Fekete-Szego problem and some othe... The main object of the present paper is to investigate a number of useful properties such as inclusion relations, distortion bounds, coefficient estimates, subordination results, the Fekete-Szego problem and some other for a new subclass of analytic functions, which are defined here by means of linear operator. Relevant connections of the results presented here with those obtained in earlier works are also pointed out. 展开更多
关键词 analytie functions SUBORDINATION functions with positive real part linear operators conic domains
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