Abstract
A graph is symmetric if its automorphism group acts transitively on the set of arcs of the graph. In this paper, we classify connected heptavalent symmetric graphs of order 24p for each prime p. As a result, there are twelve sporadic such graphs: one for \(p=2\), four for \(p=3\), one for \(p=5\) and six for \(p=13\).
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This work was supported by the National Natural Science Foundation of China (11301154), and the Innovation Team Funding of Henan University of Science and Technology (2015XTD010).
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Guo, ST., Wu, Y. Heptavalent symmetric graphs of order \(\varvec{24p}\). Proc Math Sci 129, 58 (2019). https://doi.org/10.1007/s12044-019-0497-5
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DOI: https://doi.org/10.1007/s12044-019-0497-5