Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the invariant measure for the Yang-Mills configuration space in (3+1)
  dimensions   We consider a gauge-invariant Hamiltonian analysis for Yang-Mills theories in
three spatial dimensions. The gauge potentials are parametrized in terms of a
matrix variable which facilitates the elimination of the gauge degrees of
freedom. We develop an approximate calculation of the volume element on the
gauge-invariant configuration space. We also make a rough estimate of the ratio
of $0^{++}$ glueball mass and the square root of string tension by comparison
with $(2+1)$-dimensional Yang-Mills theory.

32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn