Linear algebra tells us a great deal about the properties of operators between finite-dimensional spaces, and about their spectrum. In general, the situation is considerably more complicated in infinite-dimensional spaces, as we have already seen. However, there is a class of operators in infinite dimensions for which a great deal of the finite-dimensional theory remains valid. This is the class of compact operators. In this chapter we will describe the principal spectral properties of general compact operators on Hilbert spaces and also the more precise results which hold for self-adjoint compact operators.
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© 2008 Springer-Verlag London Limited
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(2008). Compact Operators. In: Linear Functional Analysis. Springer Undergraduate Mathematics Series. Springer, London. https://doi.org/10.1007/978-1-84800-005-6_7
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DOI: https://doi.org/10.1007/978-1-84800-005-6_7
Publisher Name: Springer, London
Print ISBN: 978-1-84800-004-9
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