اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدA degree sequence strengthening of the vertex degree threshold for a perfect matching in 3-uniform hypergraphs
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The study of asymptotic minimum degree thresholds that force matchings and tilings in hypergraphs is a lively area of research in combinatorics. A key breakthrough in this area was a result of H`{a}n, Person and Schacht who proved that the asymptotic minimum vertex degree threshold for a perfect matching in an $n$-vertex $3$-graph is $left(frac{5}{9}+o(1)right)binom{n}{2}$. In this paper we improve on this result, giving a family of degree sequence results, all of which imply the result of H`{a}n, Person and Schacht, and additionally allow one third of the vertices to have degree $frac{1}{9}binom{n}{2}$ below this threshold. Furthermore, we show that this result is, in some sense, tight.
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