Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Local-global problem for Drinfeld modules   Let K be a function field and let (f) be a principal prime ideal of the ring
A, which is a subring of K. Let phi: A --> K {tau} be a Drinfeld module. In
this paper we consider the problem whether a point P in K which is a
phi(f)-fold locally at each place v of K, i.e., for each v there is a Q in K_v
such that phi(f).P = Q, is also a phi(f)-fold globally.
  We also discuss the same problem in the context of elliptic curves, where it
is much simpler.

19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio