Showing math.COShow all
3 papers · 1 filter
math.CO2026
Labeling regions in deformations of graphical arrangements
Gábor Hetyei
Combining Carver's variant of the Farkas' lemma with the Flow Decomposition Theorem we show that the regions of any deformation of a graphical arrangement may be bijectively labele…
math.CO2026
The toric g-vector of nestohedra
Richard Ehrenborg, Gábor Hetyei, Gábor Hetyei +1
We show the entries of the toric g-vector of any dual simplicial polytope is a nonnegative integer linear combination of its gamma-vector entries. We give combinatorial interpretat…
math.CO2024
On the structure of the d-indivisible noncrossing partition posets
Richard Ehrenborg, Gábor Hetyei
We study the poset of d-indivisible noncrossing partitions introduced by Mühle, Nadeau and Williams. These are noncrossing partitions such that each block has cardinality 1 modulo…