On the $Q$-polynomial property of bipartite graphs admitting a uniform structure

Blas Fernández, Roghayeh Maleki, Štefko Miklavič +1

Let $\Gamma$ denote a finite, connected graph with vertex set $X$. Fix $x\in X$ and let $\epsilon \ge 3$ denote the eccentricity of $x$. For mutually distinct scalars $\{θ^*_i\}_{i=…