2021/12/18 by Hamed Baghal Ghaffari, Ghaffari, Hamed Baghal, Jeffrey A. Hogan +3 · 1 citation
Engineering · Mathematics · #Algebraic and Geometric Analysis #Classical Analysis and ODEs (math.CA) #FOS: Mathematics #Geophysics and Sensor Technology #Mathematical Analysis and Transform Methods
paper · pdf · doi:10.48550/arxiv.2112.09897
openalex publication_date 2021/12/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In the present paper, we introduce the multidimensional Clifford prolate spheroidal wave functions (CPSWFs) defined on the unit ball as eigenfunctions of a Clifford differential operator and provide a Galerkin method for their computation as linear combinations of Clifford-Legendre polynomials. We show that these functions are eigenfunctions of the truncated Fourier transformation. Then we investigate the role of the CPSWFs in the spectral concentration problem associated with balls in the space and frequency domains, the behaviour of the eigenvalues of the time-frequency limiting operator and their spectral accumulation property.