Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On time   This note describes the restoration of time in one-dimensional
parameterization-invariant (hence timeless) models, namely the
classically-equivalent Jacobi action and gravity coupled to matter. It also
serves as a timely introduction by examples to the classical and quantum BV-BFV
formalism as well as to the AKSZ method.

12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat