Similar to ノイマン級数

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

Polarization identity

Coercive function

Strong topology (polar topology)

Strong operator topology

Polar topology

Polar set

Locally integrable function

Locally convex topological vector space

Extreme point

Polar decomposition

Composition operator

Constructive quantum field theory

Cauchy–Schwarz inequality

Korn's inequality

Eigenfunction

Compact convergence

Compact operator

Spectral theory of compact operators

Compact embedding