Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Existence of Cartan Connections and Geometrizable Principal Bundles   The aim of this article is to proof a necessary and sufficient condition for
the existence of a Cartan connection on a principal bundle. After collecting
the essentially well known facts to fix the terminology, soldering forms and
geometrizable principal bundles are defined to finally prove the existence
criterion.

8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
16
The categories of this paper are: stat