English

Hilbert space valued Gabor frames in weighted amalgam spaces

Functional Analysis 2020-03-11 v5

Abstract

Let H\mathbb{H} be a separable Hilbert space. In this paper we establish a generalization of Walnut's representation and Janssen's representation of the H\mathbb{H}-valued Gabor frame operator on H\mathbb{H}-valued weighted amalgam spaces WH(Lp,Lvq)W_{\mathbb{H}}(L^p,L^q_v), 1p,q1 \leq p, q \leq \infty. Also we show that the frame operator is invertible on WH(Lp,Lvq)W_{\mathbb{H}}(L^p,L^q_v), 1p,q1 \leq p, q \leq \infty, if the window function is in the Wiener amalgam space WH(L,Lw1)W_{\mathbb{H}}(L^{\infty},L^1_w). Further, we obtain the Walnut representation and invertibility of the frame operator corresponding to Gabor superframes and multi-window Gabor frames on WH(Lp,Lvq)W_{\mathbb{H}}(L^p,L^q_v), 1p,q,1 \leq p, q \leq \infty, as a special case by choosing the appropriate Hilbert space H\mathbb{H}.

Keywords

Cite

@article{arxiv.1508.01646,
  title  = {Hilbert space valued Gabor frames in weighted amalgam spaces},
  author = {Anirudha Poria and Jitendriya Swain},
  journal= {arXiv preprint arXiv:1508.01646},
  year   = {2020}
}
R2 v1 2026-06-22T10:28:29.081Z