Ryota Inagaki

collaborators

2 papers

math.CO2023

Chip-firing and critical groups of signed graphs

Matthew Cho, Anton Dochtermann, Ryota Inagaki +3

We study chip-firing on a signed graph $G_{ϕ}$ , employing a general theory of chip-firing on invertible matrices introduced by Guzmán and Klivans. Here a negative edge designates an…

math.NT2022

On Generalizations of a Conjecture of Kang and Park

Ryota Inagaki, Ryan Tamura

Let $Δ_{d}^{(a, -)} (n) = q_{d}^{(a)} (n) - Q_{d}^{(a, -)} (n)$ where $q_{d}^{(a)} (n)$ counts the number of partitions of $n$ into parts with difference at least $d$ and size at least $a$ , and…