Title:
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Digraphs contractible onto $\sp *K\sb 3$ (English) |
Author:
|
Janaqi, Stefan |
Author:
|
Lescure, F. |
Author:
|
Maamoun, M. |
Author:
|
Meyniel, H. |
Language:
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English |
Journal:
|
Mathematica Bohemica |
ISSN:
|
0862-7959 (print) |
ISSN:
|
2464-7136 (online) |
Volume:
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123 |
Issue:
|
4 |
Year:
|
1998 |
Pages:
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365-369 |
Summary lang:
|
English |
. |
Category:
|
math |
. |
Summary:
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We show that any digraph on $n\ge3$ vertices and with not less than $3n-3$ arcs is contractible onto ${}^*\!K_3$. (English) |
Keyword:
|
digraph |
Keyword:
|
minor |
Keyword:
|
contraction |
MSC:
|
05C20 |
idZBL:
|
Zbl 0934.05069 |
idMR:
|
MR1667109 |
DOI:
|
10.21136/MB.1998.125971 |
. |
Date available:
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2009-09-24T21:33:08Z |
Last updated:
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2020-07-29 |
Stable URL:
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http://hdl.handle.net/10338.dmlcz/125971 |
. |
Reference:
|
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Reference:
|
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Reference:
|
[3] Duchet P., Kaneti V.: Sur la contractibilité d'un graphe orienté en $*K_4$.Discrete Math. 130 (1994), 57-68. MR 1284749 |
Reference:
|
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Reference:
|
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Reference:
|
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Reference:
|
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Reference:
|
[8] Meyniel H.: Contractibilité de graphes orienté on $*K_3$.Private communication. |
Reference:
|
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Reference:
|
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Reference:
|
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