On Ryser's conjecture
نویسندگان
چکیده
Motivated by an old problem known as Ryser’s Conjecture, we prove that for r = 4 and r = 5, there exists > 0 such that every r-partite r-uniform hypergraph H has a cover of size at most (r − )ν(H), where ν(H) denotes the size of a largest matching in H.
منابع مشابه
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ورودعنوان ژورنال:
- Electr. J. Comb.
دوره 19 شماره
صفحات -
تاریخ انتشار 2012