A New Method of Matrix Spectral Factorization. - Gigla Janashia; Edem Lagvilava; Lasha Ephremidze (IEEE Trans. Inf. Theory, 2011)

Numerical comparison of different algorithms for construction of wavelet matrices. - Nika Salia; Alexander Gamkrelidze; Lasha Ephremidze (BlackSeaCom, 2013)

An approximation of Daubechies wavelet matrices by perfect reconstruction filter banks with rational coefficients. - Lasha Ephremidze; Alexander Gamkrelidze; Edem Lagvilava (Adv. Comput. Math., 2013)

Rank-deficient spectral factorization and wavelets completion problem. - Lasha Ephremidze; Ilya M. Spitkovsky; Edem Lagvilava (Int. J. Wavelets Multiresolution Inf. Process., 2015)

On the Algorithmization of Janashia-Lagvilava Matrix Spectral Factorization Method. - Lasha Ephremidze; Faisal Saied; Ilya M. Spitkovsky (IEEE Trans. Inf. Theory, 2018)

An algorithm for J-spectral factorization of certain matrix functions. - Lasha Ephremidze; Ilya M. Spitkovsky (CDC, 2021)

Random Generator of Orthogonal Matrices in Finite Fields. - Lasha Ephremidze; Ilya M. Spitkovsky (FICC (2), 2024)