activity
20072024
most citedNumerical construction of multipartite entanglement witnesses

18 citations · 24 across the 18 of their papers we have counts for

collaborators

18 papers

math.CO2024

Lower Bounds for Maximum Weight Bisections of Graphs with Bounded Degrees

Stefanie Gerke, Gregory Gutin, Anders Yeo +1

A bisection in a graph is a cut in which the number of vertices in the two parts differ by at most 1. In this paper, we give lower bounds for the maximum weight of bisections of ed…

math.CO2023

On Seymour's and Sullivan's Second Neighbourhood Conjectures

Jiangdong Ai, Stefanie Gerke, Gregory Gutin +3

For a vertex of a digraph, (, resp.) is the number of vertices at distance 1 from (to, resp.) and is the number of vertices at distance 2 from…

math.CO2023

Bounds on Maximum Weight Directed Cut

Jiangdong Ai, Stefanie Gerke, Gregory Gutin +2

We obtain lower and upper bounds for the maximum weight of a directed cut in the classes of weighted digraphs and weighted acyclic digraphs as well as in some of their subclasses.…

math.CO2022

Results on the Small Quasi-Kernel Conjecture

Jiangdong Ai, Stefanie Gerke, Gregory Gutin +2

A {\em quasi-kernel} of a digraph is an independent set such that for every vertex , there exists a directed path with one or two arcs…

math.CO2021

Extended Path Partition Conjecture for Semicomplete and Acyclic Compositions

Jiangdong Ai, Stefanie Gerke, Gregory Gutin +1

Let be a digraph and let denote the number of vertices in a longest path of . For a pair of vertex-disjoint induced subdigraphs and of , we say that $(A,B)…

math.CO2020

Kings in Multipartite Hypertournaments

Jiangdong Ai, Stefanie Gerke, Gregory Gutin

In his paper "Kings in Bipartite Hypertournaments" (Graphs Combinatorics 35, 2019), Petrovic stated two conjectures on 4-kings in multipartite hypertournaments. We prove one o…