activity
20042026
most citedA functional analytic approach to perturbations of the Lorentz gas

34 citations · 122 across the 30 of their papers we have counts for

collaborators

30 papers

math.DS2026

Hyperbolicity and Ergodicity in Randomly Perturbed Billiard Systems

Kien Nguyen, Hong-Kun Zhang

In this paper, we investigate the Lyapunov exponents and hyperbolicity of random billiard systems under small stochastic perturbations. Our study begins with a review of the necess…

math.DS2023

Lyapunov exponents and nonadapted measures for dispersing billiards

Vaughn Climenhaga, Mark Demers, Yuri Lima +1

For hyperbolic systems with singularities, such as dispersing billiards, Pesin theory as developed by Katok and Strelcyn applies to measures that are "adapted" in the sense that th…

nlin.PS2023

Machine learning independent conservation laws through neural deflation

Wei Zhu, Hong-Kun Zhang, P. G. Kevrekidis

We introduce a methodology for seeking conservation laws within a Hamiltonian dynamical system, which we term ``neural deflation''. Inspired by deflation methods for steady states…

math.DS2023

Inducing Schemes with Finite Weighted Complexity

Jianyu Chen, Fang Wang, Hong-Kun Zhang

In this paper, we consider a Borel measurable map of a compact metric space which admits an inducing scheme. Under the finite weighted complexity condition, we establish a thermody…

math.DS2022

Topological Entropy Of Generalized Bunimovich Stadium Billiards

Michal Misiurewicz, Hong-Kun Zhang

We estimate from below the topological entropy of the generalized Bunimovich stadium billiards. We do it for long billiard tables, and find the limit of estimates as the length goe…

q-bio.PE2022

A Modified PINN Approach for Identifiable Compartmental Models in Epidemiology with Applications to COVID-19

Haoran Hu, Connor M Kennedy, Panayotis G. Kevrekidis +1

A variety of approaches using compartmental models have been used to study the COVID-19 pandemic and the usage of machine learning methods with these models has had particularly no…