2 papers
math.CO2024
On approximating the rank of graph divisors
Kristóf Bérczi, Hung P. Hoang, Lilla Tóthmérész
Baker and Norine initiated the study of graph divisors as a graph-theoretic analogue of the Riemann-Roch theory for Riemann surfaces. One of the key concepts of graph divisor theor…
math.CO2024
A geometric proof for the root-independence of the greedoid polynomial of Eulerian branching greedoids
Lilla Tóthmérész
We define the root polytope of a regular oriented matroid, and show that the greedoid polynomial of an Eulerian branching greedoid rooted at vertex is equivalent to the …