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Fire-farve Sætningen

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<strong>Fire</strong>-<strong>farve</strong><br />

<strong>Sætningen</strong><br />

JB<br />

Oversigt<br />

Historie<br />

Kort og Grafer<br />

Bevis ide<br />

Kempekæder<br />

Beviserne<br />

Afladning<br />

Forbedringer<br />

og generaliseringer<br />

Andre<br />

overflader<br />

Referencer<br />

Referencer<br />

K. Appel and W. Haken, Every planar map is four colorable.<br />

Part I. Discharging, Illinois J. Math. 21 (1977), 429-490.<br />

K. Appel, W. Haken and J. Koch, Every planar map is four<br />

colorable. Part II. Reducibility, Illinois J. Math. 21 (1977), 491–567.<br />

G. D. Birkhoff, The reducibility of maps, Amer. J. Math. 35<br />

(1913), 114-128.<br />

H. Heesch, Untersuchungen zum Vierfarbenproblem,<br />

Hochschulskriptum 810ab, Bibliographisches Institut, Mannheim<br />

1969.<br />

A. B. Kempe, On the geographical problem of the four colors,<br />

Amer. J. Math., 2 (1879), 193-200.<br />

N. Robertson, D. P. Sanders, P. D. Seymour and R.<br />

Thomas, The four colour theorem, J. Combin. Theory Ser. B. 70<br />

(1997), 2-44.<br />

T. L. SAATY, Thirteen colorful variations on Guthrie’s four-color<br />

conjecture, Amer. Math. Monthly 79 (1972), 2-43.<br />

Robin Wilson, Four Colors Suffice: How the Map Problem Was<br />

Solved (2003)

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