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math.NA2015★ 2 cited
Signal Processing based on Stable radix-2 DCT Algorithms having Orthogonal Factors
Sirani M. Perera
This paper presents stable, radix-2, completely recursive discrete cosine transformation algorithms DCT-I and DCT-III solely based on DCT-I, DCT-II, DCT-III, and DCT-IV having spar…
math.NA2014
A Fast Algorithm for the Inversion of Quasiseparable Vandermonde-like Matrices
Sirani M. Perera, Grigory Bonik, Vadim Olshevsky
The results on Vandermonde-like matrices were introduced as a generalization of polynomial Vandermonde matrices, and the displacement structure of these matrices was used to derive…