Alexander L. Gavrilyuk

activity

20182025

most citedOn the multiplicities of digraph eigenvalues

2 citations · 2 across the 4 of their papers we have counts for

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math.CO2019★ 2 cited

On the multiplicities of digraph eigenvalues

Alexander L. Gavrilyuk, Sho Suda

We show various upper bounds for the order of a digraph (or a mixed graph) whose Hermitian adjacency matrix has an eigenspace of prescribed codimension. In particular, this general…

math.CO2019

On few-class $Q$ -polynomial association schemes: feasible parameters and nonexistence results

Alexander L. Gavrilyuk, Janoš Vidali, Jason S. Williford

We present the tables of feasible parameters of primitive $3$ -class $Q$ -polynomial association schemes and $4$ - and $5$ -class $Q$ -bipartite association schemes (on up to $2800$ , $1…

On the multiplicities of digraph eigenvalues

On few-class Q-polynomial association schemes: feasible parameters and nonexistence results

On few-class $Q$ -polynomial association schemes: feasible parameters and nonexistence results