2 problems

Let $v=tk+r$ with integers $t\geq 2$ and $1\leq r\leq k-1$, and let $\mathcal{S}$ be a partial $k$-spread in $\mathbb{F}_q^v$. Its deficiency is the number of points not covered by…

Let $V$ be a $2n$-dimensional symplectic vector space over \text{Bbb F}_q, and let a symplectic partial spread be a set of pairwise disjoint maximal totally isotropic subspaces…