Statistics of entries of matrices from the general linear group over a finite field
Let $\mathrm{GL}_n(\mathbb{F}_q)$ be the group of $n\times n$ invertible matrices over a finite field $\mathbb{F}_q$. How many matrices in $\mathrm{GL}_n(\mathbb{F}_q)$ are there with a subset of their entries prescribed? Motivated by the random matrix theory of classical compact groups, we address this question and va...