Abstract
In this paper, combining the non-decaying properties with the mixed-norm properties, the revelent sampling problems are studied under the target space of \(L_{\vec{p},\frac{1}{\omega }}(\mathbb{R}^{d})\). Firstly, we will give a stability theorem for the shift-invariant subspace \(V_{\vec{p},\frac{1}{\omega }}(\varphi )\). Secondly, an ideal sampling in \(W_{\vec{p},\frac{1}{\omega }}^{s}(\mathbb{R}^{d})\) is proved, and thirdly, a convergence theorem (or algorithm) is shown for \(V_{\vec{p},\frac{1}{\omega }}(\varphi )\). It should be pointed out that the auxiliary function \(\varphi \) enjoys the membership in a Wiener amalgam space.
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The authors would like to thank the referees for carefully reading the manuscript, giving valuable comments and suggestions to improve the results.
Funding
This project is partially supported by the Natural Science Foundation of Tianjin City, China (Grant No. 18JCYBJC16300).
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Zhao, J. Nonuniform Sampling Theorem for Non-decaying Signals in Mixed-Norm Spaces \(L_{\vec{p},\frac{1}{\omega }}(\mathbb{R}^{d})\). Acta Appl Math 189, 2 (2024). https://doi.org/10.1007/s10440-023-00631-0
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DOI: https://doi.org/10.1007/s10440-023-00631-0