Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lattices, cohomology and models of six dimensional almost abelian
  solvmanifolds   We construct lattices on six dimensional not completely solvable almost
abelian Lie groups, for which the Mostow condition does not hold. For the
corresponding compact quotients, we compute the de Rham cohomology (which does
not agree in general with the Lie algebra one) and a minimal model. We show
that some of these solvmanifolds admit not invariant symplectic structures and
we study formality and Lefschetz properties.

31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc