Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase transition of generalized two dimensional Yang-Mills U(N) on the
  sphere for $G(z)=z^4+\lambda\,z^3$ and Maxwell construction   The large-N behavior of the quartic-cubic generalized two dimensional
Yang-Mills U(N) on the sphere is investigated for finite cubic couplings.
First, it is shown that there are two phase transitions one of which is third
order and the other one is second order. Second, $gYM_2$ and Maxwell
construction are compared and a relationship between two-dimensional
space-time, that is purely mathematical, and four-dimensional space-time is
obtained.

26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph