spectral theory

spec·tral the·ory
/ˈspɛktɹ(ə)l ˈθɪəɹi/

noun

Those theories extending the eigenvalue and eigenvector theory of a single square matrix to a much broader theory of the structure of operators in a variety of mathematical spaces.

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Meanings

nounspectral theory (plural spectral theories)

plural spectral theories

  1. mathematicsThose theories extending the eigenvalue and eigenvector theory of a single square matrix to a much broader theory of the structure of operators in a variety of mathematical spaces.
Cite this entry
APA

spectral theory. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/spectral%20theory

MLA

“spectral theory.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/spectral%20theory. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “spectral theory,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/spectral%20theory.

Source: spectral theory on Wiktionary, CC BY-SA 4.0.