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Eigenvectors and Eigenvalues

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Linear Algebra

Part of the book series: Undergraduate Texts in Mathematics ((UTM))

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Abstract

This chapter gives the basic elementary properties of eigenvectors and eigenvalues. We get an application of determinants in computing the characteristic polynomial. In ยง3, we also get an elegant mixture of calculus and linear algebra by relating eigenvectors with the problem of finding the maximum and minimum of a quadratic function on the sphere. Most students taking linear algebra will have had some calculus, but the proof using complex numbers instead of the maximum principle can be used to get real eigenvalues of a symmetric matrix if the calculus has to be avoided. Basic properties of the complex numbers will be recalled in an appendix.

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ยฉ 1987 Springer Science+Business Media New York

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Lang, S. (1987). Eigenvectors and Eigenvalues. In: Linear Algebra. Undergraduate Texts in Mathematics. Springer, New York, NY. https://doi.org/10.1007/978-1-4757-1949-9_8

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  • DOI: https://doi.org/10.1007/978-1-4757-1949-9_8

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4419-3081-1

  • Online ISBN: 978-1-4757-1949-9

  • eBook Packages: Springer Book Archive

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