On k-11-representable graphs

@article{Cheon2018OnKG,
  title={On k-11-representable graphs},
  author={Gi-Sang Cheon and Jinha Kim and Minki Kim and S. Kitaev and A. Pyatkin},
  journal={arXiv: Combinatorics},
  year={2018}
}
Distinct letters $x$ and $y$ alternate in a word $w$ if after deleting in $w$ all letters but the copies of $x$ and $y$ we either obtain a word of the form $xyxy\cdots$ (of even or odd length) or a word of the form $yxyx\cdots$ (of even or odd length). A graph $G=(V,E)$ is word-representable if there exists a word $w$ over the alphabet $V$ such that letters $x$ and $y$ alternate in $w$ if and only if $xy$ is an edge in $E$. Thus, edges of $G$ are defined by avoiding the consecutive pattern 11… Expand
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Enumeration and extensions of word-representants

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