B. Servatius

activity

20032025

most citedPlanar Minimally Rigid Graphs and Pseudo-Triangulations

92 citations · 139 across the 14 of their papers we have counts for

collaborators

Showing 2021Show all

2 papers · 1 filter

math.CO2021★ 2 cited

Maps and $Δ$ -matroids revisited

Rémi Cocou Avohou, Brigitte Servatius, Herman Servatius

Using Tutte's combinatorial definition of a map we define a $Δ$ -matroid purely combinatorially and show that it is identical to Bouchet's topological definition.

math.CO2021

Generate $Δ$ -matroids from matroids

Rémi Cocou Avohou, Brigitte Servatius, Herman Servatius

We give necessary and sufficient conditions for two matroids on the same ground set to be the upper and lower matroid of a $Δ$ -matroid.

Maps and Δ-matroids revisited

Generate Δ-matroids from matroids

Maps and $Δ$ -matroids revisited

Generate $Δ$ -matroids from matroids