Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Matrix Kloosterman sums   We study a family of exponential sums that arises in the study of the
horocyclic flow on $\mathrm{GL}_n$. We prove an explicit version of general
purity and find optimal bounds for these sums.

26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics