3 papers
math.CO2020
Patchworking Oriented Matroids
Marcel Celaya, Georg Loho, Chi Ho Yuen
In a previous work, we gave a construction of (not necessarily realizable) oriented matroids from a triangulation of a product of two simplices. In this follow-up paper, we use a v…
math.CO2020
Oriented Matroids from Triangulations of Products of Simplices
Marcel Celaya, Georg Loho, Chi Ho Yuen
We introduce a construction of oriented matroids from a triangulation of a product of two simplices. For this, we use the structure of such a triangulation in terms of polyhedral m…
math.AG2018
The dimension of an amoeba
Jan Draisma, Johannes Rau, Chi Ho Yuen
Answering a question by Nisse and Sottile, we derive a formula for the dimension of the amoeba of an irreducible algebraic variety.