Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Defect Models of Structure Formation After the COBE
  Discovery of CMB Anisotropies   The COBE satellite has discovered anisotropies in the cosmic microwave
background (CMB) consistent with a scale invariant spectrum of density
perturbations. As reviewed in this lecture, topological defect models of
structure formation generically produce such a spectrum. We give a summary of
the cosmic string and global texture models, focusing on distinct observational
signatures in large-scale structure surveys and in the microwave background. It
is shown that the amplitude of the CMB quadrupole detected by COBE is in good
agreement with the predictions of the cosmic string model.

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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg