Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hyperelliptic jacobians without complex multiplication   We prove that the jacobian of a hyperelliptic curve y^2=f(x) has no
nontrivial endomorphisms over an algebraic closure of the ground field of
characteristic zero if the Galois group of the polynomial f is ``very big''.

20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex