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Publication:3872506
zbMath0434.05054MaRDI QIDQ3872506
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Publication date: 1978
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hypergraphsdirect producttransversal numberfractional matchingfractional chromatic indexfractional graph
Research exposition (monographs, survey articles) pertaining to combinatorics (05-02) Hypergraphs (05C65) Graph theory (05C99) Combinatorial aspects of packing and covering (05B40)
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