Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hybrid subconvexity bounds for twists of $\rm GL (3)\times GL(2)$
  $L$-functions   In this paper, we solve the hybrid subconvexity problem for $\rm GL (3)\times
GL (2)$ $L$-functions twisted by a primtive Dirichlet charater modulo $M$
(prime) in the $M$- and $t$-aspects. We also improve hybrid subconvexity bounds
for twists of $\rm GL(3)$ $L$-functions in the $M$- and $t$-aspects.

25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph