Birkhoff factorization
Appearance
In mathematics, Birkhoff factorization or Birkhoff decomposition is the factorization of a matrix M with coefficients that are Laurent polynomials in z into a product M=M+M0M−, where M+ has entries that are polynomials in z and M− has entries that are polynomials in z−1.
References
- Khimshiashvili, G. (2001) [1994], "Birkhoff factorization", Encyclopedia of Mathematics, EMS Press