Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the numerical value for the strong coupling constant
  from tau decays in perturbative QCD   The determination of the numerical value for the strong coupling constant
from tau decays in perturbative QCD is briefly described. Main emphasis is made
on the use of the renormalization scheme invariance of the theory for reducing
uncertainties related to truncation of the series in the strong coupling
constant. The analysis of the convergence of the series is presented and the
possibility of the asymptotic growth at the NNNLO is discussed.

34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph