Similar to ディリクレの原理

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

Space of continuous functions on a compact space

Operator topologies

Operator algebra

Operator norm

James' space

Square-integrable function

Shift operator

Projection (linear algebra)

Weakly measurable function

Weak operator topology