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An optimal result for sampling density in shift-invariant spaces generated by Meyer scaling function
Published in Academic Press Inc.
2017
Volume: 451
   
Issue: 1
Pages: 197 - 208
Abstract
For a class of continuously differentiable function ϕ satisfying certain decay conditions, it is shown that if the maximum gap δ:=supi⁡(xi+1−xi) between the consecutive sample points is smaller than a certain number B0, then any f∈V(ϕ) can be reconstructed uniquely and stably. As a consequence of this result, it is shown that if δ<1, then {xi:i∈Z} is a stable set of sampling for V(ϕ) with respect to the weight {wi:i∈Z}, where wi=(xi+1−xi−1)/2 and ϕ is the scaling function associated with Meyer wavelet. Further, the maximum gap condition δ<1 is sharp. © 2017 Elsevier Inc.
About the journal
JournalJournal of Mathematical Analysis and Applications
PublisherAcademic Press Inc.
ISSN0022247X
Open AccessNo