Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Efficient Representations of Radiality Constraints in Optimization of
  Islanding and De-Energization in Distribution Grids   Optimization of power distribution system topology is complicated by the
requirement that the system be operated in a radial configuration. In this
paper, we discuss existing methods for enforcing radiality constraints and
introduce two new formulations that enable optimization over partially
energized or islanded network topologies. The first builds on methods that use
so-called parent-child constraints, but enforces those constraints on an
abstracted network which enables an equivalent formulation with significantly
less variables and constraints. The second formulation builds on existing
approaches which directly generate constraints disallowing loops, and through
an iterative approach seeks to limit the number of these constraints which must
be enforced.

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The categories of this paper are: astro-ph
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ex
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin