Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Connective C*-algebras   Connectivity is a homotopy invariant property of separable C*-algebras which
has three notable consequences: absence of nontrivial projections,
quasidiagonality and a more geometric realization of KK-theory for nuclear
C*-algebras using asymptotic morphisms. The purpose of this paper is to further
explore the class of connective C*-algebras. We give new characterizations of
connectivity for exact and for nuclear separable C*-algebras and show that an
extension of connective separable nuclear C*-algebras is connective. We
establish connectivity or lack of connectivity for C*-algebras associated to
certain classes of groups: virtually abelian groups, linear connected nilpotent
Lie groups and linear connected semisimple Lie groups.

28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat