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 逼近
 approximation
 Weighted Simultaneous Approximation by the Linear Combinations of Gamma Operators Gamma算子线性组合的加权同时逼近 短句来源 On Univariate and Multivariate Padé Approximation Padé逼近若干问题研究 短句来源 Algebraic Approximation and Its Application in Solutions of Differential Equations 代数函数逼近及其在微分方程数值解中的应用 短句来源 Lagrange Interpolation in n Variables and Wavelet Approximation for Two-dimensional Digital Image n元函数的Lagrange插值与二维数字图象的小波逼近 短句来源 Matrix Valued Rational Approximation and Applications in Control Theory 矩阵有理逼近及其在控制论中应用 短句来源 更多
 approach
 Research on the Approach Theory and Algorithm for Evaluating Geometrical Errors 形位误差的逼近原理及算法研究 短句来源 An Experimental Research of the Approach to the Impulse Signal by Means of a Narrow pulse 用窄脉冲来逼近冲激信号的实验研究 短句来源 Pade APPROACH METHOD OF FILTER DESIGN 滤波器设计的Pade逼近法 短句来源 A New Approach to Inverse Problems of Wave Equations 波动方程反演问题的一种新的逼近方法 短句来源 An Approach of Control Points for Form Finding of Reinforced Cable Nets 索网结构外形判定的控制点逼近法 短句来源 更多
 approximate
 Some Analytical Approximate Methods for Large Amplitude Nonlinear Oscillations 求解大振幅非线性振动问题的若干解析逼近方法 短句来源 Approximate Seguence for U (t, t_0)-operator U(t,t_0)—算符的逼近序列(Ⅰ) 短句来源 Approximate sequence for U(t, t_0)-operator U(t,t_0)—算符的逼近序列(Ⅱ) 短句来源 APPROXIMATE SEQUENCE FOR U(t,t_0)-OPERATOR U(t,t_0)-算符的逼近序列 短句来源 Best Approximate Solutions of Fredholm Linear Integral Equations of First Kind 第一类Fredholm积分方程的最佳逼近解 短句来源 更多
 approximating
 Prove mainly the strongly convergence theorem of the iterative sequence {xn}: xn + 1 = anx + (1 - an)yn + en , n = 0,1,2,…,(where X0 = x ∈ H,{ an } , | rn | and {en } satisfies certain conditions, || yn - Jr xn || approximating techniques and give its application. 主要用逼近技巧证明了迭代序列{xn}:xn+1=anx+(1-an)yn+en,n=0,1,2,…(其中x0=x∈H,{an},{rn},{en}满足某条件||yn-Jrnxn||≤δn,∑δn<∞,Jrn=(I+rnT)-1)的强收敛定理,并且给出了其应用的实例. 短句来源 The finite dimension approximating solution for initial-boundary problem of coupling nonlinear system of parabolic equationut-D 1Δu-k 1u+k 2uv=f(x,t) ut-D 2Δv-k 2uv+k 3v=g(x,t)is constructed by orthogonal basis of characteristic value sequence of the Laplace operator in the Dirichlet boundary conditions, and the uniform convergence of the approximating solution is proved. 以 Laplace算子在 Dirichlet条件下的特征值序列为正交基底构造耦合非线性抛物型方程组初边值问题 u t- D1 Δu - k1 u + k2 uv =f (x,t) v t- D2 Δv - k2 uv + k3v =g(x,t)的有限维逼近解 ,证明该逼近解的一致收敛于此问题的广义解 . 短句来源 A Counterexample of Approximating an Almost Isometric Operator by an Isometric Operator in B (1~1→1~∞) Space B(1~1→1~∞)中几乎等距算子用等距算子逼近问题的一个反例 短句来源 The problem of approximating solutions to theequation Tx = f by the Ishikawa iterative process with errors is investigated , where X0 ∈ X , {un} , {v n } are bounded sequences in X, and {αn } ,{βn} are real sequences in [ 0 , 1 ] . 研究了用带误差的Ishikawa迭代程序:来逼近方程Tx=f解的问题,其中x0∈X,{un},{vn}是X中的有界序列,{αn},{βn}是[0,1]中的实数列. 短句来源 The best approximating of bounded linear operator in the space W_2~1[a,b] W_2~1[a,b]空间中有界线性算子的最佳逼近 短句来源 更多

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 approximation
 We investigate the $L_p$-error of approximation to a function $f\in L_p({\Bbb T}^d)$ by a linear combination $\sum_{k}c_ke_k$ of $n$ We study and compare their approximation properties and applicability in data compression. Multiresolution Analysis and Multivariate Approximation of Smooth Signals in CB(Rd Approximation of Distribution Spaces by Means of Kernel Operators We investigate conditions on kernel operators in order to provide prescribed orders of approximation in the Triebel-Lizorkin spaces. 更多
 approach
 We use the theory of tilting modules for algebraic groups to propose a characteristic free approach to "Howe duality" in the exterior algebra. The main idea for our approach relies on a study of the boundary theory we established for the general CAT(-1) spaces. A new approach to standard monomial theory for classical groups Our proof is based on a different approach and is much more rigorous. We suggest an approach for classifying such representations for anyQ and obtain a classification forQ being an equioriented Dynkin diagramAn. 更多
 approximate
 A necessary and sufficient geometric condition on the growth of the boundary of approximate tiles is reduced to a problem in Fourier analysis that is shown to have an elegant simple solution in dimension one. Hence, we are able to approximate (in the L2-norm) MSF wavelets by wavelets with any desired degree of smoothness on the Fourier transform side. Hence, we are able to approximate (in the L2-norm) MSF wavelets by wavelets with any desired degree of smoothness on the Fourier transform side. For Fourier-bandlimited symbols, we derive the expected formulae for composition and commutators and construct an orthonormal basis of common approximate eigenvectors that could be used to study spectral theory. For Fourier-bandlimited symbols, we derive the expected formulae for composition and commutators and construct an orthonormal basis of common approximate eigenvectors that could be used to study spectral theory. 更多
 approximating
 For the analogs of the heat and wave equation, we give algorithms for approximating the solution, and display the results of implementing these algorithms. In this article we investigate the computational aspects of some recently proposed iterative methods for approximating the canonical tight and canonical dual window of a Gabor frame (g, a, b). This article presents a method for approximating spherical functions from discrete data of a block-wise grid structure. These decompositions have a multiscale structure, independent Gaussian random variables in high-frequency terms, and the random coefficients of low-frequency terms approximating the Gaussian stationary process itself. Necessary conditions for renewal processes approximating to Wiener processes 更多
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