Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Autoequivalences of toric surfaces   We show that the autoequivalence group of the derived category of any smooth
projective toric surface is generated by the standard equivalences and
spherical twists obtained from -2-curves. In many cases we give all relations
between these generators. We also prove a close link between spherical objects
and certain pairs of exceptional objects.

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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
1
The categories of this paper are: cs
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The categories of this paper are: astro-ph
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
3
The categories of this paper are: physics
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The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex