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No strongly regular graph is locally Heawood
Aleksandar Jurišić, Janoš Vidali Faculty of Computer Science and Informatics, University of Ljubljana, and Institute of Mathematics, Physics and Mechanics (Ljubljana, Slovenia)
Abstract:
We investigate when a strongly regular graph is locally Heawood. We focus on a putative strongly regular graph with parameters $(v, k, \lambda, \mu) = (85, 14, 3, 2)$, which is the only candidate for such a graph. Assuming that the graph is locally Heawood, we analyze its structure, finally arriving to a contradiction, which allows us to conclude that no strongly regular graph is locally Heawood.
Keywords:
strongly regular graphs, local graphs, Heawood graph.
Received: 27.06.2019 Accepted: 12.07.2019
Citation:
Aleksandar Jurišić, Janoš Vidali, “No strongly regular graph is locally Heawood”, Chebyshevskii Sb., 20:2 (2019), 198–206
Linking options:
https://www.mathnet.ru/eng/cheb763 https://www.mathnet.ru/eng/cheb/v20/i2/p198
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Abstract page: | 176 | Full-text PDF : | 32 | References: | 25 |
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