Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Novel Method to Construct NSSD Molecular Graphs   A graph is said to be NSSD (= non-singular with a singular deck) if it has no
eigenvalue equal to zero, whereas all its vertex-deleted subgraphs have
eigenvalues equal to zero. NSSD graphs are of importance in the theory of
conductance of organic compounds. In this paper, a novel method is described
for constructing NSSD molecular graphs from the commuting graphs of the
$H_v$-group. An algorithm is presented to construct the NSSD graphs from these
commuting graphs.

17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg