23 citations · 54 across the 6 of their papers we have counts for
6 papers
General representation of collective neural dynamics with columnar modularity
Myoung Won Cho, Seunghwan Kim
We exhibit a mathematical framework to represent the neural dynamics at cortical level. Our description of neural dynamics with columnar and functional modularity, named fibre bund…
Instability of planar vortices in two-dimensional easy-plane Heisenberg model with distance-dependent interactions
Myoung Won Cho, Seunghwan Kim
It is known that magnetic vortices in two dimensional Heisenberg models with easy-plane anisotropy exhibit an instability depending on the anisotropy strength. In this paper, we st…
Different ocular dominance map formation by influence of orientation columns in visual cortices
Myoung Won Cho, Seunghwan Kim
In animal experiments, the observed orientation preference (OP) and ocular dominance (OD) columns in the visual cortex of the brain show various pattern types. Here, we show that t…
Understanding visual map formation through vortex dynamics of spin Hamiltonian models
Myoung Won Cho, Seunghwan Kim
The pattern formation in orientation and ocular dominance columns is one of the most investigated problems in the brain. From a known cortical structure, we build spin-like Hamilto…
Internal localized eigenmodes on spin discrete breathers in antiferromagnetic chains with on-site easy axis anisotropy
Sang Wook Kim, Seunghwan Kim
We investigate internal localized eigenmodes of the linearized equation around spin discrete breathers in 1D antiferromagnets with on-site easy axis anisotropy. The threshold of oc…
Chaotic Transport in Planar Periodic Vortical Flows
Taehoon Ahn, Seunghwan Kim
We have studied a chaotic transport in a two-dimensional periodic vortical flow under a time-dependent perturbation with period T where the global diffusion occurs along the stocha…