Approximate factorization for a class of second-order matrix functions

Autor:	S. N. Kiyasov
Rok vydání:	2017
Předmět:	Pure mathematics Factorization General Mathematics Matrix function Factorization of polynomials Block matrix Single-entry matrix Nonnegative matrix Incomplete LU factorization Mathematics Matrix decomposition
Zdroj:	Lobachevskii Journal of Mathematics. 38:1131-1145
ISSN:	1818-9962 1995-0802
Popis:	The notion of approximate factorization of a Holder matrix function on a simple smooth closed contour is introduced. The elements of a (2 × 2)-matrix function of a special form are approximated by polynomials in z and 1/z. Sufficient conditions for the vanishing of the partial indices of the approximating matrix function are found. Factorization of the approximating matrix function is explicitly constructed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2fd50471857deb35b9e4986a88edd274 https://doi.org/10.1134/s1995080217060166 Zobrazit plný text záznamu Full text from SpringerLink