Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectrum of Strongly Regular Graphs under Graph Operators   In this paper, we show that if G is strongly regular then the Gallai graph
and the anti-Gallai graph of G are edge-regular. We also identify conditions
under which the Gallai and anti-Gallai graphs are themselves strongly regular,
as well as conditions under which they are 2-connected. We include also a
number of concrete examples and a discussion of spectral properties of the
Gallai and anti-Gallai graphs.

36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th