Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of Long-Range Interactions on the Multicritical Behavior of
  Homogeneous Systems   A field-theoretic approach is applied to describe behavior of homogeneous
three-dimensional systems with long-range interactions defined by two order
parameters at bicritical and tetracritical points. Renormalization- group
equations are analyzed in the two-loop approximation by using the Pade-Borel
summation technique. The fixed points corresponding to various types of
multicritical behavior are determined. It is shown that effects due to
long-range interactions can be responsible for a change from bicritical to
tetracritical behavior.

37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas