Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On subgroups of an automorphism group of an irreducible symplectic
  manifold   Let X be an irreducible symplectic manifold and L a nef line bundle on X
which is isotropic with respect to the Beauville-Bogomolov quadratic form. It
is known that a subgroup Aut(X,L) of an automorphism group of X which fix L is
almost abelian. We give a formula of the rank of Aut(X,L) in terms of MBM
divisors. We also prove that the nef cone of X cut out MBM classes, which is a
generalization of Kovac's structure theorem of nef cones of K3 surfaces

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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: cs
10
The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: chem-ph