Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unique continuation for the Schrodinger equation with gradient vector
  potentials   We obtain unique continuation results for Schrodinger equations with time
dependent gradient vector potentials. This result with an appropriate
modification also yields unique continuation properties for solutions of
certain nonlinear Schrodinger equations.

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The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci