A New Method of Matrix Spectral Factorization
A new method of matrix spectral factorization is proposed which reliably computes an approximate spectral factor of any matrix spectral density that admits spectral factorization
math.CV↗
arXiv subjects
Gigla Janashia
Publications and source records attributed to Gigla Janashia.
On Parametrization of Compact Wavelet Matrices
It is given an efficient complete parametrization of wavelet matrices of rank $m$, genus $g+1$, and degree $g$, which are naturally identified with corresponding polynomial paraunitary matrix-functions. The parametrization depends on Wiener-Hopf factorization of unitary matrix-functions with constant determinant given in the unit circle. This method allows us to construct in real time the coefficients of wavelet matrices from the above class.
math.CA↗