Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariant Lie derivatives and Fr\"olicher-Nijenhuis bracket on Lie
  Algebroids   We define covariant Lie derivatives acting on vector-valued forms on Lie
algebroids and study their properties. This allows us to obtain a concise
formula for the Fr\"olicher-Nijenhuis bracket on Lie algebroids.

29
The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
16
The categories of this paper are: stat
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The categories of this paper are: atom-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess