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20192026
most citedA Computational Study of Exact Subgraph Based SDP Bounds for Max-Cut, Stable Set and Coloring

9 citations · 50 across the 22 of their papers we have counts for

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6 papers · 1 filter

math.CO2021

Sum-of-Squares Certificates for Vizing's Conjecture via Determining Gröbner Bases

Elisabeth Gaar, Melanie Siebenhofer

The famous open Vizing conjecture claims that the domination number of the Cartesian product graph of two graphs and is at least the product of the domination numbers of $G…

math.CO2020★ 1 cited

A characterization of graphs with regular distance- graphs

Elisabeth Gaar, Daniel Krenn

For non-negative integers~, we consider graphs in which every vertex has exactly vertices at distance~, i.e., graphs whose distance- graphs are -regular. We call su…

math.CO2020★ 2 cited

Towards a Computational Proof of Vizing's Conjecture using Semidefinite Programming and Sums-of-Squares

Elisabeth Gaar, Daniel Krenn, Susan Margulies +1

Vizing's conjecture (open since 1968) relates the product of the domination numbers of two graphs to the domination number of their Cartesian product graph. In this paper, we formu…

math.CO2020

On -Bend and Monotonic -Bend Edge Intersection Graphs of Paths on a Grid

Eranda Çela, Elisabeth Gaar

If a graph can be represented by means of paths on a grid, such that each vertex of corresponds to one path on the grid and two vertices of are adjacent if and only if…

math.CO2019★ 6 cited

Monotonic Representations of Outerplanar Graphs as Edge Intersection Graphs of Paths on a Grid

Eranda Cela, Elisabeth Gaar

In a representation of a graph as an edge intersection graph of paths on a grid (EPG) every vertex of is represented by a path on a grid and two paths share a grid edge iff…

math.CO2019★ 2 cited

An Optimization-Based Sum-of-Squares Approach to Vizing's Conjecture

Elisabeth Gaar, Daniel Krenn, Susan Margulies +1

Vizing's conjecture (open since 1968) relates the sizes of dominating sets in two graphs to the size of a dominating set in their Cartesian product graph. In this paper, we formula…