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- W2144710149 abstract "We prove a decomposition theorem for graphs that do not contain a subdivision of K4 as an induced subgraph where K4 is the complete graph on four vertices. We obtain also a structure theorem for the class C of graphs that contain neither a subdivision of K4 nor a wheel as an induced subgraph, where a wheel is a cycle on at least four vertices together with a vertex that has at least three neighbors on the cycle. Our structure theorem is used to prove that every graph in C is 3-colorable and entails a polynomial-time recognition algorithm for membership in C. As an intermediate result, we prove a structure theorem for the graphs whose cycles are all chordless." @default.
- W2144710149 created "2016-06-24" @default.
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- W2144710149 date "2012-07-01" @default.
- W2144710149 modified "2023-09-30" @default.
- W2144710149 title "On graphs with no induced subdivision of K4" @default.
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