Upper chromatic number of finite project
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GΓ‘bor BacsΓ³; Zsolt Tuza
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Article
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2008
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John Wiley and Sons
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English
β 135 KB
## Abstract For a finite projective plane $\Pi$, let $\bar {\chi} (\Pi)$ denote the maximum number of classes in a partition of the point set, such that each line has at least two points in the same partition class. We prove that the best possible general estimate in terms of the order of projectiv