1) Stancu-Kantorovich operators
Stancu-Kantorovich算子
1.
By introducing smooth modulus with weighted function,and with the help of the equivalent relation between smooth modulus and K-functional,the problem of the weighted approximation for Stancu-Kantorovich operators in Bα spaces is studied,then the direct theorem of strong type is obtained.
通过引入带权函数的光滑模,借助光滑模与K泛函的等价关系,研究了Stancu-Kantorovich算子在Bα空间的加权逼近,得到了逼近的强型正定理。
2.
Abstract The approximation problem by Stancu-Kantorovich operators in Ba spaces is studied.
讨论Stancu-Kantorovich算子在Ba空间中的逼近阶与饱和性质,得到了逼近阶的一种估计与饱和性定理。
2) Stancu-Kantorovich operator
Stancu-Kantorovich算子
1.
Approximation of Stancu-Kantorovich operators in Orlicz spaces;
Stancu-Kantorovich算子在Orlicz空间的逼近阶
3) bivariate Stancu-Kantorovic operators
二元Stancu-Kantorovich算子
4) a new type of Stancu-Kantorovich operators
新型Stancu-Kantorovich算子
1.
In this paper,a new type of Stancu-Kantorovich operators is constructed firstly.
构造了一类新型Stancu-Kantorovich算子,讨论了该算子在Bα空间的逼近问题,得到了逼近的正定理。
2.
In this paper,a new type of Stancu-Kantorovich operators is constructed firstly,and the saturation of these operators in Orlicz space is studied.
构造了一类新型Stancu-Kantorovich算子,讨论了该算子在Orlicz空间的饱和性问题。
5) generalized Stancu-Kantorovich type operators
推广的Stancu-Kantorovich型算子
1.
The approximation estimation of generalized Stancu-Kantorovich type operators is studied in Orlicz spaces and the direct theorem is obtained.
研究了推广的Stancu-Kantorovich型算子在Orlicz空间的逼近,得到了逼近的正定理。
6) Stancu-kantorovic operator
Stancu-kantorovic算子
补充资料：凹算子与凸算子
凹算子与凸算子
concave and convex operators
凹算子与凸算子「阴~皿d阴vex.耳阳.勿韶;.留叮.肠疽“‘.小啊j阅雌口叹甲司 半序空间中的非线性算子，类似于一个实变量的凹函数与凸函数. 一个Banach空间中的在某个锥K上是正的非线性算子A，称为凹的(concave)(更确切地，在K上u。凹的)，如果 l)对任何的非零元x任K，下面的不等式成立: a(x)u。(Ax续斑x)u。，这里u。是K的某个固定的非零元，以x)与口(x)是正的纯量函数; 2)对每个使得 at(x)u。续x《月1(x)u。，al，月l>0，成立的x‘K，下面的关系成立二 A(tx))(l+，(x，t))tA(x)，0
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参考词条