2 citations · 2 across the 5 of their papers we have counts for
5 papers
Canonical binary -matroids
Rémi Cocou Avohou, Brigitte Servatius, Herman Servatius
The handle slide operation, originally defined for ribbon graphs, was extended to delta-matroids by I. Moffatt and E. Mphako-Bandab, who show that, using a delta-matroid analogue o…
Maps and -matroids revisited
Rémi Cocou Avohou, Brigitte Servatius, Herman Servatius
Using Tutte's combinatorial definition of a map we define a -matroid purely combinatorially and show that it is identical to Bouchet's topological definition.
Generate -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 -matroid.
A complete characterization of -pairs of 6-polytopes
Karim Adiprasito, Rémi Cocou Avohou
We completely characterize the first two entries, namely the -vector pairs, for -dimension polytopes. We also find the characterization for -dimension polytopes w…
Embedding Half-Edge Graphs in Punctured Surfaces
Remi C. Avohou, Joseph Ben Geloun, Mahouton N. Hounkonnou
It is known that graphs cellularly embedded into surfaces are equivalent to ribbon graphs. In this work, we generalize this statement to broader classes of graphs and surfaces. Hal…