On graphs whose Hosoya indices are primitive Pythagorean triples

zbMath1366.05033arXiv1402.1337MaRDI QIDQ5272792

Yasuhide Numata, Tomoe Kadoi

Publication date: 4 July 2017

Full work available at URL: https://arxiv.org/abs/1402.1337

zbMATH Keywords

continued fractionscontinuantscaterpillar treesreduced Pythagorean triplesZ-indices

Mathematics Subject Classification ID

Trees (05C05) Enumeration in graph theory (05C30) Graphs and linear algebra (matrices, eigenvalues, etc.) (05C50) Edge subsets with special properties (factorization, matching, partitioning, covering and packing, etc.) (05C70) Continued fractions (11A55) Distance in graphs (05C12) Multiplicative structure; Euclidean algorithm; greatest common divisors (11A05)

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