8 citations · 10 across the 4 of their papers we have counts for
Showing math.COShow all
2 papers · 1 filter
math.CO2022★ 2 cited
Oriented cobicircular matroids are
Santiago Guzmán-Pro, Winfried Hochstättler
Colourings and flows are well-known dual notions in Graph Theory. In turn, the definition of flows in graphs naturally extends to flows in oriented matroids. So, the colour-flow du…
math.CO2022
Double circuits in bicircular matroids
S. Guzmán-Pro, W. Hochstättler
The first non-trivial case of Hadwiger's conjecture for oriented matroids reads as follows. If is an -free oriented matroid, then admits a NZ $3…