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A fundamental identity for Parseval frames

R. Balan·P. G. Casazza·D. Edidin·G. Kutyniok
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Abstract

In this paper we establish a suprising fundamental identity for Parseval frames in a Hilbert space. Several variations of this result are given, including an extension to general frames. Finally, we discuss the derived results.

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R. Balan, P. G. Casazza, D. Edidin, G. Kutyniok. 2005-06-17. A fundamental identity for Parseval frames. https://arxiv.org/abs/math/0506357

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