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20012024
most citedUntangling planar graphs from a specified vertex position - Hard cases

10 citations · 44 across the 41 of their papers we have counts for

collaborators

48 papers

cs.DM2024

Gathering Information about a Graph by Counting Walks from a Single Vertex

Frank Fuhlbrück, Johannes Köbler, Oleg Verbitsky +1

We say that a vertex in a connected graph is decisive if the numbers of walks from of each length determine the graph rooted at up to isomorphism among all conn…

cs.DM2024

Canonical labelling of sparse random graphs

Oleg Verbitsky, Maksim Zhukovskii

We show that if , then the Erdős-Rényi random graph with high probability admits a canonical labeling computable in time . Combined with the previous…

math.CO2024

New bounds for the optimal density of covering single-insertion codes via the Turán density

Oleg Pikhurko, Oleg Verbitsky, Maksim Zhukovskii

We prove that the density of any covering single-insertion code over the -symbol alphabet cannot be smaller than for some positive real not…

cs.CC2024

On the Expressibility of the Reconstructional Color Refinement

V. Arvind, Johannes Köbler, Oleg Verbitsky

One of the most basic facts related to the famous Ulam reconstruction conjecture is that the connectedness of a graph can be determined by the deck of its vertex-deleted subgraphs,…

cs.CC2023

Canonization of a random graph by two matrix-vector multiplications

Oleg Verbitsky, Maksim Zhukovskii

We show that a canonical labeling of a random -vertex graph can be obtained by assigning to each vertex the triple , where is the number of…

cs.CC2023

Canonization of a random circulant graph by counting walks

Oleg Verbitsky, Maksim Zhukovskii

It is well known that almost all graphs are canonizable by a simple combinatorial routine known as color refinement, also referred to as the 1-dimensional Weisfeiler-Leman algorith…