Frames for source recovery from non-uniform dynamical samples
Functional Analysis
2026-04-13 v1
Abstract
Motivated by the work of Aldroubi et al., we investigate the stability of the source term of the discrete dynamical system indexing over a non-uniform discrete set arising from spectral pairs in infinite-dimensional separable Hilbert spaces. Extending results due to Aldroubi et al., firstly, we give a necessary and sufficient condition for the recovery of the source term in finitely many iterations. Afterwards, we derive a necessary condition for the stability of the source term in finitely many iterations when it belongs to the closed subspace of an infinite-dimensional separable Hilbert space. Finally, we give a necessary and sufficient condition for the recovery of the source term in infinitely many iterations.
Cite
@article{arxiv.2501.16949,
title = {Frames for source recovery from non-uniform dynamical samples},
author = {Ruchi and Lalit Kumar Vashisht},
journal= {arXiv preprint arXiv:2501.16949},
year = {2026}
}