We derive new convergence results for the Schoenberg operator and more general quasi-interpolation operators. In particular, we prove that natural conditions on the generator function imply convergence of these operators in the Fourier algebra A(Rd) = FL1(Rd) and in S0(R), a function space developed by the first author and often used in time-frequency analysis. As a simple yet very useful conse...

Despite the literature exploring the factors of adopting information technology (IT) applications for the logistics industry, Radio Frequency Identification (RFID) is still considered an innovative technology, because of its unique characteristics compared with other IT applications. To avoid the negative effects derived from careless IT investments, companies in Taiwan’s logistics industry mus...

Gaussian signals play a very special role in classical time-frequency analysis because they are solutions of apparently unrelated problems such as minimum uncertainty or positivity and separability of Wigner-Ville distributions. We investigate here some of the logical connections which exist between these diierent features, and we discuss some examples and counterexamples of their extension to ...