Author

Fuhong Ma

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Preprint Oct 2026

$K_r$-Packings in Graphs with $t_{r-1}(n)+k$ Edges

Fix an integer $r\ge 3$. Let $K_r$ denote the complete graph on $r$ vertices and $t_{r-1}(n)$ the Tur\'an number for $K_r$. For each integer $k$ satisfying $0\le k \le \binom{n}{2}-t_{r-1}(n)$, $\rev{\phi_r(n,k)}$ denotes the minimum, over all $n$-vertex graphs with $t_{r-1}(n)+k$ edges, of the maximum size of a $K_r$-...

Han-Zhi Bai, Fu-Hong Ma, Jin Yan · 0 citations

Preprint Jul 2026

A note on zero-sum Ramsey numbers of complete graphs

For a graph $H$ with $3\mid e(H)$, the zero-sum Ramsey number $R(H,\Z_3)$ is the least integer $N$ such that every labeling of the edges of $K_N$ by elements of $\Z_3$ contains a copy of $H$ whose edge labels sum to zero. We determine the last previously unresolved infinite family in the complete-graph case modulo $3$....

Cheng Chi, Jia-Lin He, Fuhong Ma · 0 citations