Subgraphs of large connectivity and chro
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N. Alon; D. Kleitman; C. Thomassen; M. Saks; P. Seymour
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Article
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1987
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John Wiley and Sons
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English
⚖ 144 KB
For each pair k, rn of natural numbers there exists a natural number f(k, rn) such that every f ( k , m)-chromatic graph contains a k-connected subgraph of chromatic number at least rn.