Extremal sizes of subspace partitions

Olof Heden, Juliane Lehmann, Esmeralda Nastase +1

A subspace partition $\Pi$ of $V=V(n,q)$ is a collection of subspaces of $V$ such that each 1-dimensional subspace of $V$ is in exactly one subspace of $\Pi$. The size of $\Pi$ is the nu…