Similar to コーシー＝シュワルツの不等式

Wavelet transform

Volterra integral equation

Self-adjoint operator

Reflexive space

Open mapping theorem (functional analysis)

Analytic semigroup

Almost Mathieu operator

Function space

Functional square root

Spectrum of a ring

Plancherel theorem for spherical functions

Absorbing set

Coercive function

Strong topology (polar topology)

Strong operator topology

Polar topology

Polar set

Locally integrable function

Locally convex topological vector space

Extreme point

Krein–Milman theorem

Composition operator

Constructive quantum field theory

Eigenfunction

Cholesky decomposition

Compact convergence

Compact operator

Spectral theory of compact operators