69 citations · 206 across the 23 of their papers we have counts for
24 papers
Crossed products of C^*-algebras for singular actions with spectrum conditions
Hendrik Grundling, Karl-Hermann Neeb
We analyze existence of crossed product constructions of Lie group actions on C^*-algebras which are singular. These are actions where the group need not be locally compact, or the…
Covariant representations for possibly singular actions on C*-algebras
Daniel Beltita, Hendrik Grundling, Karl-Hermann Neeb
Singular actions on C*-algebras are automorphic group actions on C*-algebras, where the group need not be locally compact, or the action need not be strongly continuous. We study t…
Dynamics for QCD on an infinite lattice
Hendrik Grundling, Gerd Rudolph
We prove the existence of the dynamics automorphism group for Hamiltonian QCD on an infinite lattice in R^3, and this is done in a C*-algebraic context. The existence of ground sta…
Quantum Systems and Resolvent Algebras
Detlev Buchholz, Hendrik Grundling
This survey article is concerned with the modeling of the kinematical structure of quantum systems in an algebraic framework which eliminates certain conceptual and computational d…
Crossed products of C*-algebras for singular actions
Hendrik Grundling, Karl-Hermann Neeb
We consider group actions of topological groups on C*-algebras of the types which occur in many physics models. These are singular actions in the sense that they need not be strong…
Lie Algebras of Derivations and Resolvent Algebras
Detlev Buchholz, Hendrik Grundling
This paper analyzes the action δ of a Lie algebra X by derivations on a C*-algebra A. This action satisfies an "almost inner" property which ensures affiliation of the generators o…