Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Central twisted transformation groups and group $C^*$-algebras of
  central group extensions   We examine the structure of central twisted transformation group \cs-algebras
$C_{0}(X)\rtimes_{\id,u}G$, and apply our results to the group \cs-algebras of
central group extensions. Our methods require that we study Moore's cohomology
group $H^{2}\bigl(G,C(X,\T)\bigr)$, and, in particular, we prove an inflation
result for pointwise trivial cocyles which may be of use elsewhere.

18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom