On upper chromatic number for SQS(10) and SQS(16)
A mixed hypergraph is characterized by the fact that it possesses anti-edges as well as edges. In a colouring of a mixed hypergraph, every anti-edge has at least two vertices of the same colour and every edge has at least two vertices coloured differently. The upper chromatic number <span style=&...
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| Format: | Article |
| Language: | English |
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Università degli Studi di Catania
1995-11-01
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| Series: | Le Matematiche |
| Online Access: | http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/508 |