Factorizations for a Class of Multivariate Polynomial Matrices

05/28/2019
by   Dong Lu, et al.
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Following the works by Lin et al. (Circuits Syst. Signal Process. 20(6): 601-618, 2001) and Liu et al. (Circuits Syst. Signal Process. 30(3): 553-566, 2011), we investigate how to factorize a class of multivariate polynomial matrices. The main theorem in this paper shows that an l× m polynomial matrix admits a factorization with respect to a polynomial if the polynomial and all the (l-1)× (l-1) reduced minors of the matrix generate the unit ideal. This result is a further generalization of previous works, and based on this, we give an algorithm which can be used to factorize more polonomial matrices. In addition, an illustrate example is given to show that our main theorem is non-trivial and valuable.

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