Real and Complex Algebras
- Uniform norm
- Matrix norm
- Spectral radius
- Normed division algebra
- Stone–Weierstrass theorem
- Banach algebra
- *-algebra
- B*-algebra
- C*-algebra
- Universal C*-algebra
- Spectrum of a C*-algebra
- Positive element
- Positive linear functional
- operator algebra
- nest algebra
- reflexive operator algebra
- Calkin algebra
- Gelfand representation
- Gelfand–Naimark theorem
- Gelfand–Naimark–Segal construction
- Von Neumann algebra
- Abelian von Neumann algebra
- von Neumann double commutant theorem
- Commutant, bicommutant
- Topological ring
- Noncommutative geometry
- Disk algebra
- Colombeau algebra
Read more about this topic: List Of Functional Analysis Topics
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