English

The most general structure of graphs with hamiltonian or hamiltonian connected square

Combinatorics 2023-09-28 v3

Abstract

On the basis of recent results on hamiltonicity and hamiltonian connectedness in the square of a 2-block, we determine the most general block-cutvertex structure a graph GG may have in order to guarantee that G2G^2 is hamiltonian, hamiltonian connected, respectively. Such an approach was already developed for hamiltonian total graphs.

Keywords

Cite

@article{arxiv.2203.12665,
  title  = {The most general structure of graphs with hamiltonian or hamiltonian connected square},
  author = {J. Ekstein and H. Fleischner},
  journal= {arXiv preprint arXiv:2203.12665},
  year   = {2023}
}

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18 pages