Vector states on algebras of observables and superselection rules

Vector states on algebras of observables and superselection rules I. Vector states and Hilbert space

Fields and algebras of observables in models with superselection rules

Fields and algebras of observables in models with superselection rules

von Neumann Algebras of Observables and Superselection Rules

Von neumann algebras of observables with non-Abelian commutator algebra and superselection rules

The Commutativity of Superselection Rules and a Complete Set of Observables