Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rigid holomorphic rank 2 vector bundles on non-K\"ahler surfaces   The interest in rigid vector bundles (with respect to determinant preserving
deformations) stems from various sources. From a geometric point of view,
non-K\"ahler manifolds are of particular interest with respect to this problem.
In this article, a description of the various possible cases of rigid rank 2
bundles on non-K\"ahler surfaces is presented. The largest gap of knowledge is
for minimal class VII surfaces with $b_{2}(X)\ge 4$.

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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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The categories of this paper are: plasm-ph
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The categories of this paper are: nlin
7
The categories of this paper are: hep-th
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The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: physics
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The categories of this paper are: q-fin