Given any finite dimensional ve : E→ E, there is a basis (u₁,..., Un) with triangular matrix (in Mn(K)) iff all the eig ery n x n matrix A E Mn(K), there is an ine T (both in Mn(K)) such that A = PTP

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Given any finite dimensional vector space over a field K, for any linear
map f: EE, there is a basis (u₁,..., un) with respect to which f is represented by an
upper triangular matrix (in Mn(K)) iff all the eigenvalues of f belong to K. Equivalently,
for every n x n matrix A € Mn(K), there is an invertible matrix P and an upper triangular
matrix T (both in Mn(K)) such that
A = PTP-¹
iff all the eigenvalues of A belong to K.
Transcribed Image Text:Given any finite dimensional vector space over a field K, for any linear map f: EE, there is a basis (u₁,..., un) with respect to which f is represented by an upper triangular matrix (in Mn(K)) iff all the eigenvalues of f belong to K. Equivalently, for every n x n matrix A € Mn(K), there is an invertible matrix P and an upper triangular matrix T (both in Mn(K)) such that A = PTP-¹ iff all the eigenvalues of A belong to K.
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