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2-matchings and 2-covers of hypergraphs. (English) Zbl 0339.05123

MSC:
05C99 Graph theory
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References:
[1] C. Berge,Graphs and hypergraphs, North-Holland, 1973.
[2] D. R. Fulkerson, Anti-blocking polyhedra,J. Comb. Theory,B 12 (1972), 50–71. · Zbl 0227.05015 · doi:10.1016/0095-8956(72)90032-9
[3] T. Gallai, Über extreme Punkt- und Kantenmengen,Ann. Univ. Sci. Budapest Eötvös Sect. Math.,2 (1959), 133–138. · Zbl 0094.36105
[4] L. Lovász, Normal hypergraphs and the perfect graph conjecture,Discrete Math.,2 (1972), 253–267. · Zbl 0239.05111 · doi:10.1016/0012-365X(72)90006-4
[5] L. Lovász, Minimax theorems for hypergraphs,Proc. Hypergraph seminar in Columbus, Ohio.
[6] L. Lovász, On two minimax theorems in graph theory, to appear inJ. Comb. Th.
[7] W. T. Tutte, The factorization of linear graphs.J. London Math. Soc.,22 (1947), 107–111. · Zbl 0029.23301 · doi:10.1112/jlms/s1-22.2.107
[8] W. T. Tuite, The 1-factors of oriented graphs,Proc. Amer. Math. Soc.,4 (1953), 922–931. · Zbl 0052.20004
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