Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the cotangent cohomology of rational surface singularities with
  almost reduced fundamental cycle   We prove dimension formulas for the cotangent spaces $T^{1}$ and $T^{2}$ for
a class of rational surface singularities by calculating a correction term in
the general dimension formulas. We get that it is zero if the dual graph of the
rational surface singularity $X$ does not contain a particular type of
configurations, and this generalizes a result of Theo de Jong stating that the
correction term $c(X)$ is zero for rational determinantal surface
singularities. In particular our result implies that $c(X)$ is zero for
Riemenschneiders quasi-determinantal rational surface singularities, and this
also generalise results for qoutient singularities.

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The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
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The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol