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History and Evolution of the Density Theorem for Gabor Frames

✍ Scribed by Christopher Heil

Publisher
SP Birkhäuser Verlag Boston
Year
2007
Tongue
English
Weight
398 KB
Volume
13
Category
Article
ISSN
1069-5869

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## Abstract We consider a class of abstract evolution problems characterized by the sum of two unbounded linear operators __A__ and __B__, where __A__ is assumed to generate a positive semigroup of contractions on an L^1^‐space and B is positive. We study the relations between the semigroup generat