Aleksandar Jurisic

11 citations · 11 across the 2 of their papers we have counts for

collaborators

2 papers

math.CO2009

A characterization of Q-polynomial distance-regular graphs

Aleksandar Jurisic, Paul Terwilliger, Arjana Zitnik

We obtain the following characterization of $Q$ -polynomial distance-regular graphs. Let $\G$ denote a distance-regular graph with diameter $d \geq 3$ . Let $E$ denote a minimal idempo…

math.CO2001★ 11 cited

Tight distance-regular graphs

Aleksandar Jurisic, Jack Koolen, Paul Terwilliger

We consider a distance-regular graph $\G$ with diameter $d \geq 3$ and eigenvalues $k = θ_{0} > θ_{1} > ... > θ_{d}$ . We show the intersection numbers $a_{1}, b_{1}$ satisfy $$ (θ_1 + {k \over a_1+1…