34 citations · 40 across the 5 of their papers we have counts for
Showing math.CVShow all
3 papers · 1 filter
math.CV2007
On the estimation of the convergence rate in the Janashia-Lagvilava spectral factorization algorithm
Lasha Ephremidze, Nobuhiko Fujii
In the present paper, we estimate the convergence rate in the Janashia-Lagvilava spectral factorization algorithm (see Studia Mathematica, 137, 1999, 93-100) under the restriction…
math.CV2007★ 3 cited
An Analytic Proof of the Matrix Spectral Factorization Theorem
L. Ephremidze, G. Janshia, E. Lagvilava
An analytic proof is proposed of Wiener's theorem on factorization of positive definite matrix-functions.
math.CV2007★ 1 cited
A simple proof of the matrix-valued Fejér-Riesz theorem
L. Ephremidze, G. Janashia, E. Lagvilava
A very short proof of the Fejér-Riesz lemma is presented in the matrix case