Finitely Generated Nilpotent Group C*-algebras Have Finite Nuclear Dimension
نویسندگان
چکیده
We show that group C*-algebras of finitely generated, nilpotent groups have finite nuclear dimension. It then follows, from a string of deep results, that the C*-algebra A generated by an irreducible representation of such a group has decomposition rank at most 3. If, in addition, A satisfies the universal coefficient theorem, another string of deep results shows it is classifiable by its Elliott invariant and is approximately subhomogeneous. We give a large class of irreducible representations of nilpotent groups (of arbitrarily large nilpotency class) that satisfy the universal coefficient theorem and therefore are classifiable and approximately subhomogeneous.
منابع مشابه
Lie Algebras with Finite Gelfand-kirillov Dimension
We prove that every finitely generated Lie algebra containing a nilpotent ideal of class c and finite codimension n has Gelfand-Kirillov dimension at most cn. In particular, finitely generated virtually nilpotent Lie algebras have polynomial growth.
متن کامل2 3 N ov 2 00 6 The problem of the classification of the nilpotent class 2 torsion free groups up
In this paper we consider the problem of classification of the nilpotent class 2 finitely generated torsion free groups up to the geometric equivalence. By a very easy technique it is proved that this problem is equivalent to the problem of classification of the complete (in the Maltsev sense) nilpotent torsion free finite rank groups up to the isomorphism. This result, allows us to once more c...
متن کاملContinuity of Homomorphisms on Pro-nilpotent Algebras
Let V be a variety of not necessarily associative algebras, and A an inverse limit of nilpotent algebras Ai ∈V, such that some finitely generated subalgebra S ⊆A is dense in A under the inverse limit of the discrete topologies on the Ai. A sufficient condition on V is obtained for all algebra homomorphisms from A to finite-dimensional algebras B to be continuous; in other words, for the kernels...
متن کاملExtended centres of finitely generated prime algebras
Let K be a field and let A be a finitely generated prime K-algebra. We generalize a result of Smith and Zhang, showing that if A is not PI and does not have a locally nilpotent ideal, then the extended centre of A has transcendence degree at most GKdim(A) − 2 over K. As a consequence, we are able to show that if A is a prime K-algebra of quadratic growth, then either the extended centre is a fi...
متن کاملSpectral Duality for Finitely Generated Nilpotent Minimum Algebras, with Applications
In nilpotent minimum logic, the conjunction is semantically interpreted by a left-continuous (but not continuous) triangular norm; implication is obtained through residuation. We shall focus attention on finitely axiomatized theories in nilpotent minimum logic; their algebraic counterparts are finite NM-algebras. Building on results in [1] and [2], we establish a spectral (or Stone-type) dualit...
متن کامل