Fire-farve Sætningen

More documents

Recommendations

Info

Fire-farve Sætningen JB Oversigt Historie Kort og Grafer Bevis ide Kempekæder Kempe’s bevis Kempe’s fejl Heawood’s modeksempel Heawood grafen 5-farve sætningen Birkhoff Birkhoff’s diamant C-reducerbarhed Konfigurationer og D-reducerbarhed Beviserne Afladning Forbedringer Ringstørrelsen Antal forskellige 4-farvninger af en k-ring 6 7 8 9 10 11 12 13 14 31 91 274 820 2461 7381 22144 64430 199291 χCk (x) = (x − 1)k + (−1) k (x − 1). Hvis mindst 3 farver bruges f˚as 24 ækvivalente. Hvis netop 2 farver bruges (kun muligt for k lige) f˚as 12 ækvivalente. Antal = χCk (4)/24 for k ulige 1 + (χCk (4) − 12)/24 for k lige
Fire-farve Sætningen JB Oversigt Historie Kort og Grafer Bevis ide Kempekæder Beviserne Afladning Forbedringer og generaliseringer Andre overflader Referencer Beviserne Heesch: 8904 uundg˚aelige konfigurationer burde være nok! Appel, Haken: 1476 reducerbare konfigurationer. Appel, Haken: Uundg˚aelighed via 487 (komplicerede) afladningsregler. Robertson, Sanders, Seymour og Thomas: 633 reducerbare konfigurationer. Robertson et al: Uundg˚aelighed via 32 (simple) afladningsregler. Simplere D-reducibilitet. Mange bogus beviser ...
Page 1 and 2:
Fire-farve Sætningen JB Oversigt H
Page 3 and 4:
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134: Fire-farve Sætningen JB Oversigt H
Page 183: Fire-farve Sætningen JB Oversigt H
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
show all

Fire-farve Sætningen

Create successful ePaper yourself

Delete template?

Save as template?