Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hilbert C*-bimodules of finite index and approximation properties of
  C*-algebras   Let $A$ and $B$ be arbitrary $C^*$-algebras, we prove that the existence of a
Hilbert $A$-$B$-bimodule of finite index ensures that the WEP, QWEP, and LLP
along with other finite-dimensional approximation properties such as CBAP and
(S)OAP are shared by $A$ and $B$. For this, we first study the stability of the
WEP, QWEP and LLP under Morita equivalence of $C^*$-algebras.
  We present examples of Hilbert $A$-$B$-bimodules which are not of finite
index, while such properties are shared between $A$ and $B$. To this end, we
study twisted crossed products by amenable discrete groups.

21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg