Time-frequency concentration of generating systems
نویسندگان
چکیده
منابع مشابه
Time-frequency concentration of generating systems
Uncertainty principles for generating systems {en} ∞ n=1 ⊂ L (R) are proven and quantify the interplay between l(N) coefficient stability properties and time-frequency localization with respect to |t| power weight dispersions. As a sample result, it is proven that there does not exist a unit-norm Schauder basis nor a frame {en} ∞ n=1 for L (R) such that the two dispersion sequences ∆(en), ∆(ên)...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 2011
ISSN: 0002-9939,1088-6826
DOI: 10.1090/s0002-9939-2011-10768-8