Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Maass forms on GL(3) and GL(4)   We describe a practical method for finding an L-function without first
finding the associated underlying object. The procedure involves using the
Euler product and the approximate functional equation in a new way. No use is
made of the functional equation of twists of the L-function. The method is used
to find a large number of Maass forms on SL(3,Z) and to give the first examples
of Maass forms of higher level on GL(3), and on GL(4) and Sp(4).

9
The categories of this paper are: nlin
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an