Abstract
Consider the algebra A(E; E) of linear transformations and fix an element φ∈A(E; E). Then a homomorphism Φ: Γ [t]→A(E; E) is defined by
(cf. sec. 12.11). Let μ be the minimum polynomial of φ. Since A(E; E) is non-trivial and has finite dimension, it follows that deg μ ≧ 1 (cf. sec. 12.11). The minimum polynomial of the zero transformation is t whereas the minimum polynomial of the identity map is t-1.
In this chapter E will denote a finite-dimensional non-trivial vector space defined over an arbitrary field Γ of characteristic 0, and φ: E→E will denote a linear transformation.
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© 1975 Springer-Verlag New York Inc.
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Greub, W. (1975). Theory of a linear transformation. In: Linear Algebra. Graduate Texts in Mathematics, vol 23. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-9446-4_14
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DOI: https://doi.org/10.1007/978-1-4684-9446-4_14
Publisher Name: Springer, New York, NY
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