2 problems

Let $S$ be a finite $p$-group, let $\mathcal{F}$ be a fusion system over $S$, and let $M=(M_{*},M^{*})$ be a Mackey functor over $\mathcal{F}$ on $\mathbb{F}_{p}$. Write…

Density conjecture. For each positive integer $n$, the embedding $\Delta$ is dense if and only if $\Lambda$ is piecewise hereditary.