共查询到3条相似文献,搜索用时 0 毫秒
1.
《数学学报(英文版)》2020,(2)
Any bounded tile of the field ■_p of p-adic numbers is a compact open set up to a set of zero Haar measure. In this note, we present two simple and direct proofs of this fact. 相似文献
2.
In this paper, we deal with the complex Baskakov-Szsz-Durrmeyer mixed operators and study Voronovskaja type results with quantitative estimates for these operators attached to analytic functions of exponential growth in DR= {z ∈ C;|z| R}.Also, the exact order of approximation is found. The method used allows to construct complex Szsz-type and Baskakov-type approximation operators without involving the values on [0, ∞). 相似文献
3.
This paper concerns space-like submanifolds in a pseudo-Riemannian space-time Spm p(?)Epm p 1(p≥1), and proves that connected compact maximal space-like submanifolds in a pseudo-Riemannian spacetime Spm p(?)Epm p 1(p≥1) must be totally umbilical, and also totally geodesic. Particularly, when p = 1, our result is just Montiel's in case of H = 0. 相似文献