Gel’fand-N-width in probabilistic setting

Abstract In this article, we first put forward a new definition of probabilistic Gel’fand- ( N , δ ) $(N,\delta )$ -width which is the classical Gel’fand-N-width in a probabilistic setting. Then we estimate the sharp order of the probabilistic Gel’fand- ( N , δ ) $(N,\delta )$ -width of finite-dimen...

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Bibliographic Details
Main Authors: Xin Tan, Yanan Wang, Lu Sun, Xingfeng Shao, Guanggui Chen
Format: Article
Language:English
Published: SpringerOpen 2020-05-01
Series:Journal of Inequalities and Applications
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13660-020-02409-6
Description
Summary:Abstract In this article, we first put forward a new definition of probabilistic Gel’fand- ( N , δ ) $(N,\delta )$ -width which is the classical Gel’fand-N-width in a probabilistic setting. Then we estimate the sharp order of the probabilistic Gel’fand- ( N , δ ) $(N,\delta )$ -width of finite-dimensional space. Furthermore, we obtain the exact order of probabilistic Gel’fand- ( N , δ ) $(N, \delta )$ -width of univariate Sobolev space by the discretization method according to the result of finite-dimensional space.
ISSN:1029-242X