In this paper, we will use the 2r-th Ditzian-Totik modulus of smoothness to discuss the direct and inverse theorems of Lp metric approximation by Left-Bernstein-Durrmeyer quasi-interpolant operator Mn[2r-1](f), for functions which are defined in the space Lp[0,1] (1≤p≤+∞).
本文利用2r阶Ditzian-Totik光滑模ω_φ~(2r)(f,t)_p讨论了Left-Bernstein-Durrmeyer拟插值算子M_n~([2r-1])(g)对空间L_p[0,1](1≤p≤+∞)中函数在度量L_p下逼近的正逆定理。
The inverse theorem of global approximation of derivatives of generalized Bernstein polynomials;
关于推广的Bernstein多项式同时逼近的逆定理
Generalized Baskakov operators and the direct and inverse theorem of its derivatives;
广义Baskakov算子及导数的正逆定理
Both direct and inverse theorems of pointwise approximation are derived.
证明了定义在 [0 ,∞ )上的具有 s阶连续有界导数的函数可以用修正的 Sza′sz算子线性组合的 s阶导数逼近 ,得到了点态逼近的正定理和逆定理 。
This paper investigates the converse theorem of rectangular projection theorem in descriptive geometry,and furthermore supplements and confirms another converse theorem,"If the projection of two lines intersecting vertically fo rms a rectangle on a certain projecting plane,at least one line of the two lines is parallel to the projecting plane.
通过对《画法几何学》中直角投影定理的逆定理的研究,得出:“若垂直相交的两直线在某一投影面上投影成直角,则该两直线至少有一条直线平行于该投影面”的推论。
The converse theorems of mean value theorem of two and three dimensional biharmonic function are presented and prove
提出并证明了二维和三维双调和函数中值定理的逆定
The mean value theorems and converse theorems of bending and vibration of bars are presented and proven.
提出并证明了杆件弯曲和振动的中值定理和逆定理，对所得的结果进行了讨
The Direct and Inverse Theorems of Pointwise and Global for Derivatives of Bernstein- Kantorovich Operators
Bernstein-Kantorovich算子导数的点态和整体的正逆定理
Solution of the direct and inverse positioning problems
正和逆定位问题的解
A new construction theorem for orthodox semigroups with inverse transversals was given.
本文给出了具有逆断面的纯正半群的一个新的构造定理.
Bernstein Type Inverse Approximation Theorem on SL(2,R);
SL(2,R)上的Bernstein型逆定理
Inverse eigenvalue problem for real symmetric five-diagonal positive definite matrix;
实对称正定五对角矩阵逆特征值问题
Generalized Inverse of Quantale Matrixs and Its Positive Definiteness
Quantale矩阵的广义逆及其正定性
Inverse Operator Theorem and Z-graph Theorem in Sub-normed Z-linear Space;
Z-空间中的逆算子定理和Z-图像定理
First,the Tikhonov regularization method is employed to solve the ill-posed inverse problem.
首先利用Tik-honov正则化法求解不适定逆问题;
The Lower Bound of the Determinant for Hadamard Product of an Inverse M-matrix and a Positive Definite Matrix;
逆M-矩阵与正定矩阵Hadamard乘积行列式的下界
The Equal Condition of Semipositive Subdefinite Matrix and Left and Right Inverse;
亚半正定阵的判别及左右逆特征值问题
Perturbation Bounds of Semi-definite Positive Factors of M-P Inverse under Non-Preserving Rank Perturbating
M-P逆在非保秩扰动下半正定极因子的扰动界
Perturbation Bounds for Semi-positive Definite Polar Factor of M-P Inverse under Additive Noise
M-P逆在加法扰动下半正定极因子的扰动界
Sub-differential of Convex Functions and the Converse of the Mean Value Theorem
凸函数的次微分与微分中值定理的逆定理
On Inverse Problem of Higher Order Cauchy s Mean Value Theorem and It s Approachability;
高阶Cauchy中值定理的逆命题及其渐近性
On the Inverse Problem of Herstein Theorem;
关于Herstein定理的逆问题研究
Unbounded Perturbation of Generalized Inverse and Extreme Minimum Fixed Point Theorem
无界广义逆的扰动与极小不动点定理
A converse comparison theorem for some backward stochastic differential equations
一类倒向随机微分方程的逆比较定理
A global reverse theorem for combinations of generalized Bernstein operators
广义Bernstein组合算子饱和性的整体逆定理