Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The central limit theorem for Riesz-Raikov sums II   For a $d\times d$ expanding matrix $A$, we investigate randomness of the
sequence $\{A^k x\}$ and prove the central limit theorem for $\sum f(A^k x)$
where $f$ is a periodic function with a mild regularity condition.

21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th