On $\ell$-weakly cross $t$-intersecting families for sets and vector spaces

Shuhui Yu, Lijun Ji

Let $[n]$ (resp. $V$) be an $n$-element set (resp. $n$-dimensional vector space over the finite field ${\mathbb{F}}_q$), and $\left(\genfrac{}{}{0ex}{}{[n]}{k}\right)$ (resp. $\left[\genfrac{}{}{0ex}{}{V}{k}\right]$)…