3 papers
math.CO2026
The balanced upper chromatic number of linear hypergraphs and the -cube over elements
Gabriela Araujo-Pardo, Silvia Fernández-Merchant, Adriana Hansberg +3
A coloring of the vertices of a hypergraph is called \emph{balanced} if the sizes of the color classes differ by at most one. We say that a hyperedge is \emph{rainbow} if its eleme…
math.CO2017
-covering red and blue points in the plane
Bernardo M. Ábrego, Silvia Fernández-Merchant, Mikio Kano +4
We say that a finite set of red and blue points in the plane in general position can be -covered if the set can be partitioned into subsets of size , with points of…
math.CO2007
On 3-decomposable geometric drawings of
Bernardo Abrego, Silvia Fernandez-Merchant, Jesus Leanos +1
The point sets of all known optimal rectilinear drawings of share an unmistakeable clustering property, the so--called {\em 3--decomposability}. It is widely believed that th…