Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Poisson geometry and Morita equivalence   These notes discuss various aspect of the ``representation theory'' of
Poisson manifolds, with focus on Morita equivalence and Picard groups. We give
a brief introduction to Poisson geometry (including Dirac and twisted Poisson
structures) and algebraic Morita theory before presenting the geometric Morita
theory of Poisson manifolds. We also point out the connections with the theory
of symplectic groupoids and hamiltonian actions.

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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th