Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: No-Hair Theorems and Black Holes with Hair   The critical steps leading to the uniqueness theorem for the Kerr-Newman
metric are reexamined in the light of the new black hole solutions with
Yang-Mills and scalar hair. Various methods -- including scaling techniques,
arguments based on energy conditions, conformal transformations and divergence
identities -- are reviewed, and their range of application to selfgravitating
scalar and non-Abelian gauge fields is discussed. In particular, the no-hair
theorem is extended to harmonic mappings with arbitrary Riemannian target
manifolds. (This paper is an extended version of an invited lecture held at the
Journ\'ees Relativistes 96.)

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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: q-bio
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The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org