Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Amenability of the Algebras R(S), F(S) of a Topological Semigroup S   For a locally compact Hausdorff semigroup S, the $L^\infty$ representation
algebra R(S) was extensively studied by Dunkl and Ramirez. The
Fourier-Stieltjes algebra F(S) of a topological semigroup was studied by Lau.
The aim of this paper is to investigate these two algebras and study the
amenability of them with respect to the structure of S.

29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph