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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 1/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 2/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 3/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 4/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 5/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 6/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 7/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 8/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 9/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 10/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 11/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 12/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 13/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 14/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 15/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 16/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 17/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 18/43
K K1,3 5−e
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 19/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 20/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 21/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 22/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 23/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 24/43
a
b
c
d
e
f
g
a b
c d e f
g
1
1
1
00
Æ
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Æ
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 25/43
a b
c d e f
g1
1
1
00
3
1
2
22 1
111
1
1
{1,2,3}
{2,3}
{2,3}{2,3}{2,3}
{3}{3} {2}{2}
{1}{1}
{1}
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Æ
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 26/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 27/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 28/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 29/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 30/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 31/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 32/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 33/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 34/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 35/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 36/43
1H
22
K K 1
K 2
241
K
NP−complete
Diamond
Claw4
P
Paw
C 4
2H
P3
K 1
4
K 3
K K 1
Polynomial
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 37/43
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8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 38/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 39/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 40/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 41/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 42/43
8/12/2019 Vertex Colouring and Forbidden Subgraphs - A Survey, by Bert Randerath, Ingo Schiermeyer
http://slidepdf.com/reader/full/vertex-colouring-and-forbidden-subgraphs-a-survey-by-bert-randerath-ingo 43/43