2 papers
math.SP2026
The restricted discrete Fourier transform
W. Riley Casper, Milen Yakimov
We investigate the restriction of the discrete Fourier transform to the space of functions with…
math.SP2024
The Pascal Matrix, Commuting Tridiagonal Operators and Fourier Algebras
W. Riley Casper, Ignacio Zurrian
We consider the (symmetric) Pascal matrix, in its finite and infinite versions, and prove the existence of symmetric tridiagonal matrices commuting with it by giving explicit expre…