spectral theory

== English == === Pronunciation === IPA(key): /ˈspɛktɹ(ə)l ˈθɪəɹi/ Hyphenation: spec‧tral the‧ory === Noun === spectral theory (plural spectral theories) (mathematics) 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. ==== Hypernyms ==== theory === References === spectral theory on Wikipedia.Wikipedia