Abstract
This paper offers a characterization of amplitude functions in \({L^2(\mathbb R)}\) satisfying the Bedrosian identity in the case that the phase functions are determined by the boundary value on the unit circle of finite Blaschke products.
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Communicated by Daniel Aron Alpay.
P. Cerejeiras was supported by Unidade de Investigação Matemática e Aplicações of the University of Aveiro. Q. Chen was supported by NSF of Guangdong Province (Project No. 8151042001000005), the National Research Foundation for the Doctoral Program of Higher Education of China (SRFDP) under grant 20070512001, and is recipient of the Research Position C2007-UA/MAT.APLIC/01. U. Kaehler was supported by Unidade de Investigação Matemática e Aplicações of the University of Aveiro.
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Cerejeiras, P., Chen, Q. & Kaehler, U. Bedrosian Identity in Blaschke Product Case. Complex Anal. Oper. Theory 6, 275–300 (2012). https://doi.org/10.1007/s11785-010-0092-3
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DOI: https://doi.org/10.1007/s11785-010-0092-3
Keywords
- Hilbert transform
- Fourier transform
- Generalized Sinc function
- Ladder shaped filter
- Vandermonde matrix
- Bedrosian identity