Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Poincar\'e Gauge Theory for Gravitational Forces in (1+1) Dimensions   We discuss in detail how string-inspired lineal gravity can be formulated as
a gauge theory based on the centrally extended Poincar\'e group in $(1+1)$
dimensions. Matter couplings are constructed in a gauge invariant fashion, both
for point particles and Fermi fields. A covariant tensor notation is developed
in which gauge invariance of the formalism is manifest.

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The categories of this paper are: cond-mat
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
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The categories of this paper are: adap-org