G. Ryabov

activity

20152026

most citedOn Schur p-groups of odd order

9 citations · 30 across the 31 of their papers we have counts for

collaborators

Showing 2022Show all

4 papers · 1 filter

math.GR2022

On generalized Schur groups

Grigory Ryabov

An $S$ -ring (Schur ring) is called central if it is contained in the center of the group ring. We introduce the notion of a generalized Schur group, i.e. such finite group that all…

math.GR2022★ 1 cited

On nilpotent Schur groups

Grigory Ryabov

A finite group $G$ is called a Schur group if every $S$ -ring over $G$ is schurian, i.e. associated in a natural way with a subgroup of $\sym(G)$ that contains all right translation…

math.CO2022

CI-property of $C_{p}^{2} \times C_{n}$ and $C_{p}^{2} \times C_{q}^{2}$ for digraphs

István Kovács, Mikhail Muzychuk, Péter P. Pálfy +2

We prove that the direct product of two coprime order elementary abelian groups of rank two, as well as the direct product of a cyclic group of prime order and a cyclic group of sq…

math.CO2022

Isomorphism testing of $k$ -spanning tournaments is Fixed Parameter Tractable

Vikraman Arvind, Ilia Ponomarenko, Grigory Ryabov

An arc-colored tournament is said to be $k$ -spanning for an integer $k \geq 1$ if the union of its arc-color classes of maximal valency at most $k$ is the arc set of a strongly conn…

On generalized Schur groups

On nilpotent Schur groups

CI-property of Cp2​×Cn​ and Cp2​×Cq2​ for digraphs

Isomorphism testing of k-spanning tournaments is Fixed Parameter Tractable

CI-property of $C_{p}^{2} \times C_{n}$ and $C_{p}^{2} \times C_{q}^{2}$ for digraphs

Isomorphism testing of $k$ -spanning tournaments is Fixed Parameter Tractable