English

On Generalizations of the Nonwindowed Scattering Transform

Functional Analysis 2023-09-14 v4 Classical Analysis and ODEs

Abstract

In this paper, we generalize finite depth wavelet scattering transforms, which we formulate as \Lbq(Rn)\Lb^q(\mathbb{R}^n) norms of a cascade of continuous wavelet transforms (or dyadic wavelet transforms) and contractive nonlinearities. We then provide norms for these operators, prove that these operators are well-defined, and are Lipschitz continuous to the action of C2C^2 diffeomorphisms in specific cases. Lastly, we extend our results to formulate an operator invariant to the action of rotations RSO(n)R \in \text{SO}(n) and an operator that is equivariant to the action of rotations of RSO(n)R \in \text{SO}(n).

Keywords

Cite

@article{arxiv.2209.05038,
  title  = {On Generalizations of the Nonwindowed Scattering Transform},
  author = {Albert Chua and Matthew Hirn and Anna Little},
  journal= {arXiv preprint arXiv:2209.05038},
  year   = {2023}
}

Comments

Corrected small typos throughout. Diffeomorphism stability definition in introduction was changed. The mapping Phi isn't necessarily from V to V, which is reflected in the results we found

R2 v1 2026-06-28T01:06:19.640Z