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Operators

Oct 15, 2021 Functional Analysis 68 min read

Functional Analysis (8): Spectral Theory — Decomposing Operators

The spectrum generalizes eigenvalues to infinite dimensions — the spectral theorem for bounded self-adjoint operators and continuous functional calculus give us a complete decomposition.

Oct 11, 2021 Functional Analysis 72 min read

Functional Analysis (6): Bounded Linear Operators and the Big Theorems

The Uniform Boundedness Principle, Open Mapping Theorem, and Closed Graph Theorem — three consequences of completeness that constrain how operators can behave.