Hilton-Milner theorem for $k$-multisets

Jiaqi Liao, Zequn Lv, Mengyu Cao +1

Let $k,n\in {\mathbb{N}}^{+}$ and $m\in {\mathbb{N}}^{+}\cup \{\infty \}$. A $k$-multiset in $[n{]}_m$ is a $k$-set whose elements are integers from $\{1,2,\dots ,n\}$, an…