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Author:

Liu YouMing (Liu YouMing.) (Scholars:刘有明) | Wang HuiYing (Wang HuiYing.)

Indexed by:

Scopus SCIE

Abstract:

Donoho et al. in 1996 have made almost perfect achievements in wavelet estimation for a density function f in Besov spaces B-r,q(s)(R). Motivated by their work, we define new linear and nonlinear wavelet estimators f(n,m)(lin), f(n,m)(non) for density derivatives f((m)). It turns out that the linear estimation E(parallel to f(n,m)(lin) - f((m))parallel to(p)) for f((m)) is an element of B-r,q(s)(R) attains the optimal when r >= p, and the nonlinear one E(parallel to f(n,m)(non) - f((m))parallel to(p)) does the same if r <= p/2(s+m)+1. In addition, our method is applied to Sobolev spaces with non-negative integer exponents as well.

Keyword:

wavelet estimators optimality Besov spaces density derivative Sobolev spaces

Author Community:

  • [ 1 ] [Liu YouMing]Beijing Univ Technol, Dept Appl Math, Beijing 100124, Peoples R China
  • [ 2 ] [Wang HuiYing]Beijing Univ Technol, Dept Appl Math, Beijing 100124, Peoples R China
  • [ 3 ] [Wang HuiYing]Cent Univ Finance & Econ, Sch Appl Math, Beijing 100081, Peoples R China

Reprint Author's Address:

  • [Wang HuiYing]Cent Univ Finance & Econ, Sch Appl Math, Beijing 100081, Peoples R China

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Source :

SCIENCE CHINA-MATHEMATICS

ISSN: 1674-7283

Year: 2013

Issue: 3

Volume: 56

Page: 483-495

1 . 4 0 0

JCR@2022

ESI Discipline: MATHEMATICS;

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 8

SCOPUS Cited Count: 8

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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