Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Frobenius Stratification of Moduli Spaces of Vector Bundles in Positive
  characteristic. II   Let $X$ be a smooth projective curve of genus $g(X)\geq 1$ over an
algebraically closed field $k$ of characteristic $p>0$, $\M^s_X(r,d)$ the
moduli space of stable vector bundles of rank $r$ and degree $d$ on $X$. We
study the Frobenius stratification of $\M^s_X(r,d)$ in terms of
Harder-Narasimhan polygons of Frobenius pull backs of stable vector bundles and
obtain the irreducibility and dimension of each non-empty Frobenius stratum in
case $(p,g,r)=(3,2,3)$.

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The categories of this paper are: nucl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con