A Toeplitz algorithm for polynomial J-spectral factorization

@article{Anaya2006ATA,
  title={A Toeplitz algorithm for polynomial J-spectral factorization},
  author={Juan Carlos Z{\'u}{\~n}iga Anaya and Didier Henrion},
  journal={Automatica},
  year={2006},
  volume={42},
  pages={1085-1093}
}
A block Toeplitz algorithm is proposed to perform the J-spectral factorization of a para-Hermitian polynomial matrix. The input matrix can be singular or indefinite, and it can have zeros along the imaginary axis. The key assumption is that the finite zeros of the input polynomial matrix are given as input data. The algorithm is based on numerically reliable operations only, namely computation of the null-spaces of related block Toeplitz matrices, polynomial matrix factor extraction and linear… CONTINUE READING

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