Yi Zhao

activity

20082022

most citedMinimum vertex degree threshold for loose Hamilton cycles in 3-uniform hypergraphs

36 citations · 131 across the 28 of their papers we have counts for

collaborators

Showing 2019Show all

4 papers · 1 filter

math.CO2019

Existence thresholds and Ramsey properties of random posets

Victor Falgas-Ravry, Klas Markström, Andrew Treglown +1

Let $P (n)$ denote the power set of $[n]$ , ordered by inclusion, and let $P (n, p)$ denote the random poset obtained from $P (n)$ by retaining each element…

math.CO2019★ 5 cited

Turán number of disjoint triangles in 4-partite graphs

Jie Han, Yi Zhao

Let $k \geq 2$ and $n_{1} \geq n_{2} \geq n_{3} \geq n_{4}$ be integers such that $n_{4}$ is sufficiently larger than $k$ . We determine the maximum number of edges of a 4-partite graph with parts of…

math.CO2019

Triangle-degrees in graphs and tetrahedron coverings in 3-graphs

Victor Falgas--Ravry, Klas Markström, Yi Zhao

We investigate a covering problem in $3$ -uniform hypergraphs ( $3$ -graphs): given a $3$ -graph $F$ , what is $c_{1} (n, F)$ , the least integer $d$ such that if $G$ is an $n$ -vertex $3$ -gr…

math.CO2019

Vertex degree sums for matchings in 3-uniform hypergraphs

Yi Zhang, Yi Zhao, Mei Lu

Let $n, s$ be positive integers such that $n$ is sufficiently large and $s \leq n /3$ . Suppose $H$ is a 3-uniform hypergraph of order $n$ . If $H$ contains no isolated vertex and $deg(…