Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Good and bad points in scales   We address three questions raised by Cummings and Foreman regarding a model
of Gitik and Sharon. We first analyze the PCF-theoretic structure of the
Gitik-Sharon model, determining the extent of good and bad scales. We then
classify the bad points of the bad scales existing in both the Gitik-Sharon
model and other models containing bad scales. Finally, we investigate the ideal
of subsets of singular cardinals of countable cofinality carrying good scales.

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The categories of this paper are: physics
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
16
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: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin