Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Switching for all Strongly Regular Collinearity Graphs From Polar
  Spaces   We describe a general construction of strongly regular graphs from the
collinearity graph of a finite classical polar spaces of rank at least $3$ over
a finite field of order $q$. We show that these graphs are non-isomorphic to
the collinearity graphs and have the same parameters. To our knowledge for most
of these parameters these graphs are new as the collinearity graphs were the
only known examples.

30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin