Actions of finite abelian groups on abelian C*-algebras Z second cohomology and description by C*-extensions F Z von Baumgärtel, Hellmut 1934-

Operatoralgebraic methods in quantum field theory a series of lectures von Baumgärtel, Hellmut 1934-

Causal nets of operator algebras mathematical aspects of algebraic quantum field theory von Baumgärtel, Hellmut 1934-, Wollenberg, Manfred

Causal structures and quasilocal algebras on Zn von Baumgärtel, Hellmut 1934-

The inverse problem of scattering theory and quantum field theory von Baumgärtel, Hellmut 1934-

The inverse problem of scattering theory and quantum field theory von Baumgärtel, Hellmut 1934-

Analytic perturbation theory for matrices and operators von Baumgärtel, Hellmut 1934-

Endlichdimensionale analytische Störungstheorie von Baumgärtel, Hellmut 1934-

Zur Theorie der Paraboloiddifferentialgleichung und der Whittakerschen Funktionen von Baumgärtel, Hellmut 1934-

Zur Theorie bihomogener Berührungstransformationen von Baumgärtel, Hellmut

Einige Bemerkungen zur Differentialgleichung X'(t)= P(t) X(t) für Operatorfunktionen von Baumgärtel, Hellmut

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Dual group actions on C*-algebras and their description by Hilbert extensions von Baumgärtel, Hellmut 1934-, Lledó, Fernando

Twisted duality of the CAR-algebra von Baumgärtel, Hellmut 1934-, Jurke, Matthias, Lledó, Fernando

Causal nets of operator algebras mathematical aspects of algebraic quantum field theory von Baumgärtel, Hellmut 1934-, Wollenberg, Manfred

On a completeness relation concerning the Hilbert spectrum of compact automorphism groups of von Neumann algebras and the canonical morphism von Baumgärtel, Hellmut 1934-

A characterization of W-k-systems with pure Hilbert spectrum, satisfying a completeness condition von Baumgärtel, Hellmut 1934-

Mutually commuting extensions of mutually double-commuting partial isometric operators von Baumgärtel, Hellmut 1934-

Analytic perturbation theory for matrices and operators von Baumgärtel, Hellmut 1934-

Mathematical scattering theory von Baumgärtel, Hellmut 1934-, Wollenberg, Manfred

Mathematical Scattering Theory von Baumgärtel, Hellmut

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