3 papers
math.PR2026
Convergence of stationary distributions for a class of zero-range processes and its application to a wealth distribution model with debt
Hironobu Sakagawa
Understanding how macroscopic wealth distributions emerge from microscopic transaction rules among agents is a central problem in econophysics. While many traditional models restri…
math.PR2025
Limiting distributions of generalized money exchange models
Hironobu Sakagawa
The "Money Exchange Model" is a type of agent-based simulation model used to study how wealth distribution and inequality evolve through monetary exchanges between individuals. The…
math.PR2023
Maximum of the Gaussian interface model in random external fields
Hironobu Sakagawa
We consider the Gaussian interface model in the presence of random external fields, that is the finite volume (random) Gibbs measure on , $Λ_N=[-N, N]^d\cap \math…