Characterization of Circular-arc Graphs: II. McConnell Flipping
Autor: | Cao, Yixin, Krawczyk, Tomasz |
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Rok vydání: | 2024 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | McConnell [FOCS 2001] presented a flipping transformation from circular-arc graphs to interval graphs with certain patterns of representations. Beyond its algorithmic implications, this transformation is instrumental in identifying all minimal graphs that are not circular-arc graphs. We conduct a structural study of this transformation, and for $C_{4}$-free graphs, we achieve a complete characterization of these patterns. This characterization allows us, among other things, to identify all minimal chordal graphs that are not circular-arc graphs in a companion paper. Comment: arXiv admin note: text overlap with arXiv:2403.01947 |
Databáze: | arXiv |
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