Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized complex structures and Lie brackets   We look at generalized complex structures from the point of view of Poisson
and Dirac geometry and we remark that the puzzling equations underlying the
notion of generalized complex structure have miraculously simple meaning when
passing to Lie algebroids/groupoids.

23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex