Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: n-Relative Categories   We introduce, for every positive integer n, the notion of an n-relative
category and show that the category of the small n-relative categories is a
model for the homotopy theory of n-fold homotopy theories, i.e. homotopy
theories of ... of homotopy theories.

29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat