19 citations · 139 across the 46 of their papers we have counts for
Showing 2025 · math.COShow all
2 papers · 2 filters
math.CO2025
-analogs of rational numbers: from Ostrowski numeration systems to perfect matchings
Jean-Christophe Aval, Sébastien Labbé
We consider the -deformation of rational numbers introduced recently by Morier-Genoud and Ovsienko. We propose three enumerative interpretations of these -rationals: in terms…
math.CO2025
Chromatic quasisymmetric functions for signed graphs
Jean-Christophe Aval, Raquel Melgar
In 1995, Stanley introduced the chromatic symmetric function of a graph, which specializes to its chromatic polynomial, and which has been the focus of intense research. In 2017, S…