Interplay of time-delay and velocity alignment in the Cucker-Smale model on a general digraph
- Authors
- Dong, Jiu-Gang; Ha, Seung-Yeal; Kim, Doheon
- Issue Date
- Oct-2019
- Publisher
- American Institute of Mathematical Sciences
- Keywords
- Communication delays; Cucker-Smale model; Digraphs; Flocking; Multi-agent systems
- Citation
- Discrete and Continuous Dynamical Systems - Series B, v.24, no.10, pp 5569 - 5596
- Pages
- 28
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Discrete and Continuous Dynamical Systems - Series B
- Volume
- 24
- Number
- 10
- Start Page
- 5569
- End Page
- 5596
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/114219
- DOI
- 10.3934/dcdsb.2019072
- ISSN
- 1531-3492
1553-524X
- Abstract
- We study dynamic interplay between time-delay and velocity alignment in the ensemble of Cucker-Smale (C-S) particles(or agents) on time-varying networks which are modeled by digraphs containing spanning trees. Time-delayed dynamical systems often appear in mathematical models from biology and control theory, and they have been extensively investigated in literature. In this paper, we provide sufficient frameworks for the mono-cluster flocking to the continuous and discrete C-S models, which are formulated in terms of system parameters and initial data. In our proposed frameworks, we show that the continuous and discrete C-S models exhibit exponential flocking estimates. For the explicit C-S communication weights which decay algebraically, our results exhibit threshold phenomena depending on the decay rate and depth of digraph. We also provide several numerical examples and compare them with our analytical results. © 2019 American Institute of Mathematical Sciences. All rights reserved.
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