Let P be an m × m matrix with entries in the polynomial algebra F [x]. L:1.1.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter5: Orthogonality
Section5.5: Applications
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Let P be an m × m matrix with entries in the polynomial algebra F [x]. The following are equivalent.
(i) P is invertible.
(ii) The determinant of P is a non – zero scalar polynomial.
(iii) P is row – equivalent to the m × m identity matrix.
(iv) P is a product of elementary matrices.
Transcribed Image Text:Let P be an m × m matrix with entries in the polynomial algebra F [x]. The following are equivalent. (i) P is invertible. (ii) The determinant of P is a non – zero scalar polynomial. (iii) P is row – equivalent to the m × m identity matrix. (iv) P is a product of elementary matrices.
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