activity
20142024
most citedGlobal Dynamics for Steep Sigmoidal Nonlinearities in Two Dimensions

9 citations · 20 across the 6 of their papers we have counts for

collaborators

6 papers

math.DS2024

Global Dynamics of Ordinary Differential Equations: Wall Labelings, Conley Complexes, and Ramp Systems

Marcio Gameiro, Tomáš Gedeon, Hiroshi Kokubu +5

We introduce a combinatorial topological framework for characterizing the global dynamics of ordinary differential equations (ODEs). The approach is motivated by the study of gene…

math.DS2021

Equilibria and their Stability in Networks with Steep Sigmoidal Nonlinearities

William Duncan, Tomas Gedeon, Hiroshi Kokubu +2

In this paper we investigate equilibria of continuous differential equation models of network dynamics. The motivation comes from gene regulatory networks where each directed edge…

math.DS2018★ 2 cited

Topological computation analysis of meteorological time-series data

Hidetoshi Morita, Masaru Inatsu, Hiroshi Kokubu

A topological computation method, called the MGSTD method, is applied to time-series data obtained from meteorological measurement. The method gives decomposition of the dynamics i…

math.DS2015★ 9 cited

Global Dynamics for Steep Sigmoidal Nonlinearities in Two Dimensions

Tomas Gedeon, Shaun Harker, Hiroshi Kokubu +2

We introduce a novel approach to obtaining mathematically rigorous results on the global dynamics of ordinary differential equations. Motivated by models of regulatory networks, we…

math.AT2014★ 8 cited

Inducing a map on homology from a correspondence

Shaun Harker, Hiroshi Kokubu, Konstantin Mischaikow +1

We study the homomorphism induced in homology by a closed correspondence between topological spaces, using projections from the graph of the correspondence to its domain and codoma…

math.DS2014★ 1 cited

Formation Mechanism of a Basin of Attraction for Passive Dynamic Walking Induced by Intrinsic Hyperbolicity

Ippei Obayashi, Shinya Aoi, Kazuo Tsuchiya +1

Passive dynamic walking is a useful model for investigating the mechanical functions of the body that produce energy-efficient walking. The basin of attraction is very small and th…