Nullspaces and frames

Details Nullspaces and frames Nullspaces and frames

2004-11-19

arxiv.org/abs/math/0411433v1

Mathematics

Functional Analysis

16 pages

Scientific paper

In this paper we give new characterizations of Riesz and conditional Riesz
frames in terms of the properties of the nullspace of their synthesis
operators. On the other hand, we also study the oblique dual frames whose
coefficients in the reconstruction formula minimize different weighted norms.

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