Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characteristic free measure rigidity for the action of solvable groups
  on homogeneous spaces   We classify measures on a homogeneous space which are invariant under a
certain solvable subgroup and ergodic under its unipotent radical. Our
treatment is independent of characteristic. As a result we get the first
measure classification for the action of semisimple subgroups without any
characteristic restriction.

19
The categories of this paper are: eess
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin