Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sullivan minimal models of classifying spaces for non-formal spaces of
  small rank   We consider certain rational homotopical conditions of simly connected CW
complex $X$ such that the rational cohomology of the classifying space
$Baut_1X$ for fibrations with two-stage fibre $X$ is (not) free. First, we
consider when is $Baut_1X$ a rational factor of $Baut_1(X\times S^n)$ for an
odd-integer $n$ and observe for a non-formal elliptic space $X$ of rank 3.
Second, we compute the Sullivan minimal models of $Baut_1X$ when $X$ are
certain non-formal pure spaces of rank 5.

7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn