The spectrum of a class of graphs derived from Grassmann graphs

S. Morteza Mirafzal, Roya Kogani

Let $n,k$ be positive integers such that $n\ge 3$, $k<\frac{n}{2}$. Let $q$ be a power of a prime $p$ and ${\mathbb{F}}_q$ be a finite field of order $q$. Let $V(q,n)$ be a vect…