Author

Yi-Chen Wang

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Preprint Sep 2026

Counting $t$-wise $L$-intersecting cliques with prescribed intersection sizes

Let $r,t\ge 3$ be integers and $L=\{\ell_1,\ell_2,\ldots,\ell_s\}\subseteq [0,r-1]$ a fixed set of integers with $|L|\neq r$ and $\ell_1<\ell_2<\cdots<\ell_s$. For each integer $n$, let $\Psi_{r}(n,L,t)$ be the maximum number of $r$-cliques in an $n$-vertex graph whose $r$-cliques, viewed as a family of $r$-subsets of...

Yi-Yang Zhan, Yi-Chen Wang, Mei Lu · 0 citations

Preprint Aug 2026

Inversion Diameter of Planar Graphs

Given an oriented graph $\vec{G}$ and a subset of vertices $X \subseteq V(\vec{G})$, the \emph{inversion} of $X$ is the operation that reverses the orientation of every arc with both endpoints in $X$. For a simple graph $G$, the inversion diameter $\operatorname{diam}(I(G))$ is the maximum distance between two orientat...

Yi-Chen Wang, Yuxuan Yang · 0 citations