Two of the authors proved a well-known conjecture of K. Wagner, that in any infinite set of finite graphs there are two graphs so that one is a minor of the other. A key lemma was a theorem about the structure of finite graphs that have no $K_n$ minor for
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Format PDF ● Seiten 103 ● ISBN 9781470401450 ● Verlag American Mathematical Society ● herunterladbar 3 mal ● Währung EUR ● ID 6612765 ● Kopierschutz Adobe DRM
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