Pseudo-Duals of Frames with Applications
نویسندگان
چکیده
منابع مشابه
Frame Representations and Parseval Duals with Applications to Gabor Frames
Let {xn} be a frame for a Hilbert space H. We investigate the conditions under which there exists a dual frame for {xn} which is also a Parseval (or tight) frame. We show that the existence of a Parseval dual is equivalent to the problem whether {xn} can be dilated to an orthonormal basis (under an oblique projection). A necessary and sufficient condition for the existence of Parseval duals is ...
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ژورنال
عنوان ژورنال: Applied and Computational Harmonic Analysis
سال: 2001
ISSN: 1063-5203
DOI: 10.1006/acha.2001.0347