Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cotangent cohomology of rational surface singularities   We show that the number of generators of the n-th cotangent cohomology group
(n >=2) is the same for all rational surface singularities Y. For a large class
of rational surface singularities, including quotient singularities, this
number is also the dimension. For them we obtain an explicit formula for the
corresponding Poincare series.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph