Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Page-R{\'e}nyi parking process   In the Page parking (or packing) model on a discrete interval (also known as
the discrete R{\'e}nyi packing problem or the unfriendly seating problem), cars
of length two successively park uniformly at random on pairs of adjacent
places, until only isolated places remain. We give a probabilistic proof of the
(known) fact that the proportion of the interval covered by cars goes to
1-exp(-2) , when the length of the interval goes to infinity. We obtain some
new consequences, and also study a version of this process defined on the
infinite line.

23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph