Decomposition systems for function spaces

By G. Kyriazis. 2003

64 citations recorded by the source corpus.

Let Θ := {θ I : e ∈ E, I ∈ D} be a decomposition system for L2(R) indexed over D, the set of dyadic cubes in R, and a finite set E, and let Θ̃ := {θ̃ I : e ∈ E, I ∈ D} be the corresponding dual functionals. That is, for every f ∈ L2(R), f = ∑ e∈E ∑ I∈D〈f, θ̃ e I〉θ I . We study sufficient conditions on Θ, Θ̃ so that they constitute a decomposition system for Triebel–Lizorkin and Besov spaces. Moreover, these conditions allow us to characterize the membership of a distribution f in these spaces by the size of the coefficients 〈f, θ̃ I〉, e ∈ E, I ∈ D. Typical examples of such decomposition systems are various wavelet-type unconditional bases for L2(R), and more general systems such as affine frames.

Subfields: Applied Mathematics, Mathematical Physics

View Paper: https://www.semanticscholar.org/paper/0b532335165c6f1aab33842ad2197c3675290db8

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In Applied Mathematics

  1. Dachun Yang
  2. Wen Yuan
  3. Tino Ullrich
  4. Yoshihiro Sawano
  5. Yiyu Liang
  6. Ciqiang Zhuo
  7. Holger Rauhut
  8. Jun Liu

In Mathematical Physics

  1. Dachun Yang
  2. Wen Yuan
  3. Tino Ullrich
  4. Yoshihiro Sawano
  5. Yiyu Liang
  6. Ciqiang Zhuo
  7. Holger Rauhut
  8. H. Kempka

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