Paul Butzer, who is considered the academic father and grandfather of many prominent mathematicians, has established one of the best schools in approximation an

The chapters of this volume are based on talks given at the eleventh international Sampling Theory and Applications conference held in 2015 at American Universi

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Reconstructing or approximating objects from seemingly incomplete information is a frequent challenge in mathematics, science, and engineering. A multitude of t

This revised and expanded monograph presents the general theory for frames and Riesz bases in Hilbert spaces as well as its concrete realizations within Gabor a