- #1
ff4ever
- 2
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Hi,
In the paper "A triangle-free circle graph with chromatic number 5" from A.A. Ageev, I don't understand what the author mean with the following definition:
Somebody can explain it to me? (I'm not mathematician).
Thanks !
Link to the whole paper:
http://www.sciencedirect.com/science/article/pii/0012365X95003492
In the paper "A triangle-free circle graph with chromatic number 5" from A.A. Ageev, I don't understand what the author mean with the following definition:
Somebody can explain it to me? (I'm not mathematician).
Thanks !
Link to the whole paper:
http://www.sciencedirect.com/science/article/pii/0012365X95003492