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Nut graphs with a given automorphism group

Year: 2025
Type: article
Abstract: A nut graph is a simple graph of order 2 or more for which the adjacency matrix has a single zero eigenvalue such that all nonzero kernel eigenvectors have no zero entry (i.e. are full). It is shown by construction that every finite group can be represented as the group of automorphisms of infinitely many nut graphs. It is further shown that such nut graphs exist even within the class of regular graphs; the cases where the degree is 8, 12, 16, 20 or 24 are realised explicitly.
Language: English
Open Access status: hybrid
Estimated APC paid: $3,090
OpenAlex ID: W4407716422
FWCI: 5.268
Cites: 33
Cited by: 3
Related to: 10