On multivariable matrix spectral factorization method

Spectral factorization is a prominent tool with several important applications in various areas of applied science. Wiener and Masani proved the existence matrix spectral factorization. Their theorem has been extended to multivariable case by Helson Lowdenslager. Solving problem numerically challenging both situations, also due its practical applications. Therefore, authors have developed algorithms for The Janashia-Lagvilava algorithm relatively new method which be useful In this paper, we extend case. Consequently, numerical constructed.