Abstract
A polynomial matrix is a matrix whose entries are polynomials. Equivalently, a polynomial matrix can be expressed as a polynomial with matrix coefficients. Formally speaking, in the univariable case, \((\mathbb {R}[x])^{m \times n}\) and \((\mathbb {R}^{m \times n}) [x]\) are isomorphic. In other words, extending the entries of matrices to polynomials is the same as extending the coefficients of polynomials to matrices.
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Wang, G., Wei, Y., Qiao, S. (2018). Generalized Inverses of Polynomial Matrices. In: Generalized Inverses: Theory and Computations. Developments in Mathematics, vol 53. Springer, Singapore. https://doi.org/10.1007/978-981-13-0146-9_10
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DOI: https://doi.org/10.1007/978-981-13-0146-9_10
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