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On intersections of interval graphs. (English) Zbl 0443.05061

MSC:
05C99 Graph theory
05C65 Hypergraphs
52A35 Helly-type theorems and geometric transversal theory
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References:
[1] V. Chv√°tal, Private Communication, 1978.
[2] Sloer, J.; Witzgall, C., Convexity and optimization in finite dimensions, (1970), Springer-Verlag Berlin
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