Fixed node determination and analysis in directed acyclic graphs of structured networks

N Park, YU Kim, HS Ahn - Journal of the Franklin Institute, 2024 - Elsevier
This paper explores the conditions for determining fixed nodes in structured networks,
specifically focusing on directed acyclic graphs (DAGs). We introduce several necessary …

Controllable Subspaces in Structured Networks of Hierarchical Directed Acyclic Graphs: Controllability of Individual Nodes

NJ Park, YU Kim, KH Oh, HS Ahn - arXiv preprint arXiv:2403.01184, 2024 - arxiv.org
Within the context of structured networks, this paper introduces the concept of the Fixed
Strongly Structurally Controllable Subspace (FSSCS), enabling a comprehensive …

Network controllability of structured networks: a survey on graph-theoretical approaches

NJ Park, HS Ahn - SICE Journal of Control, Measurement, and …, 2025 - Taylor & Francis
This paper provides an extensive overview of research on the controllability of linear
structured networks. In structured networks, the connection weight between agents is …

Controllability Matrix Analysis of Structured Networks: A Tight Lower Bound on the Dimension of Controllable Subspace

NJ Park, YB Bae, KL Moore… - 2024 European Control …, 2024 - ieeexplore.ieee.org
Network controllability in structured networks, characterized by edge weights as either zero
or non-zero, is an emerging research area. This field has grappled with determining the …