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math.FA2013
Perturbations of frames
Dongyang Chen, Lei Li, Bentuo Zheng
In this paper, we give some sufficient conditions under which perturbations preserve Hilbert frames and near-Riesz bases. Similar results are also extended to frame sequences, Ries…
math.FA2013
Order isomorphisms on function spaces
Denny H. Leung, Lei Li
The classical theorems of Banach and Stone, Gelfand and Kolmogorov, and Kaplansky show that a compact Hausdorff space is uniquely determined by the linear isometric structure,…