Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On The Expansiveness of Lie Group Actions   In this work we introduce a concept of expansiveness for actions of connected
Lie groups. We study some of its properties and investigate some implications
of expansiveness. We study the centralizer of expansive actions and introduce
CW-expansiveness for pseudo-group actions. As an application, we prove
positiveness of geometric entropy for expansive foliations and expansive group
actions.

19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph