\`x^2+y_1+z_12^34\`
Advanced Search
Article Contents
Article Contents

Flocking of non-identical Cucker-Smale models on general coupling network

  • * Corresponding author: Jonq Juang

    * Corresponding author: Jonq Juang 

This work is partially supported by the Ministry of Science and Technology of the Republic of China under grant No.\ MOST 107-2115-M-009-011-MY2 and No. MOST 107-2115-M-390-006-MY2

Abstract / Introduction Full Text(HTML) Figure(6) Related Papers Cited by
  • The purpose of the paper is to investigate the flocking behavior of the discrete-time Cucker-Smale(C-S) model under general interaction network topologies with agents having their free-will accelerations. We prove theoretically that if the free-will accelerations of agents are summable, then, for any given initial conditions, the solution achieves flocking with a finite moving speed by suitably choosing the time step as well as the communication rate of the system or the strength of the interaction between agents. In particular, if the communication rate $ \beta $ of the system is subcritical, i.e., $ \beta $ is less than a critical value $ \beta_c $, then flocking holds for any initial conditions regardless of the strength of the interaction between agents. While, if the communication rate is critical ($ \beta = \beta_c $) or supercritical ($ \beta > \beta_c $), then flocking can only be achieved by making the strength of the interaction large enough. We also present some numerical simulations to support our obtained theoretical results.

    Mathematics Subject Classification: Primary: 91C20, 92D50; Secondary: 15B48.

    Citation:

    \begin{equation} \\ \end{equation}
  • 加载中
  • Figure 1.  The network consisting of $ 9 $ vertices has a spanning tree. For this network, $ \mathcal{R} = \{1,2,3\} $, $ n = 9 $, $ \ell = 3 $, $ h = 3 $ and $ r = 2 $

    Figure 2.  The graph of $ G $

    Figure 3.  (Subcritical) Numerical simulation for model Eq. (4) with the network given in Fig. 1. This simulation result shows the solution achieves flocking. Here parameters in Eq. (4) are chosen as $ \beta = 1/10 $, $ \kappa = 10 $ and $ \varepsilon = 0.001 $. The initial conditions are randomly chosen and they satisfy $ a\approx 0.8932 $, $ b\approx 0.8104 $. Here $ a,b $ are defined in (20a)

    Figure 4.  (Critical) Numerical simulation for model Eq. (4) with the network given in Fig. 1. This simulation result shows the solution achieves flocking. Here parameters in Eq. (4) are chosen as $ \beta = 1/6 $, $ \kappa = 120 $ and $ \varepsilon = 0.001 $. The initial conditions are randomly chosen and they satisfy $ a\approx 0.8932 $, $ b\approx 0.8104 $. Here $ a,b $ are defined in (20a)

    Figure 5.  (Supercritical) Numerical simulation for model Eq. (4) with the network given in Fig. 1. This simulation result shows the solution achieves flocking. Here parameters in Eq. (4) are chosen as $ \beta = 1/3 $, $ \kappa = 200 $ and $ \varepsilon = 0.001 $. The initial conditions are randomly chosen and they satisfy $ a\approx 0.8932 $, $ b\approx 0.8104 $. Here $ a,b $ are defined in (20a)

    Figure 6.  Numerical simulation for model Eq. (4) under the network provided in Fig. 1. This simulation result shows the solution does not achieve flocking. Here parameters in Eq. (4) are chosen as $ \beta = 1 $ (supercritical), $ \kappa = 0.1 $ and $ \varepsilon = 0.001 $. The initial conditions are randomly chosen and they satisfy $ a\approx 0.2872 $, $ b\approx 0.2850 $. Here $ a,b $ are defined in (20a). Such set of parameters and initial conditions do not satisfy the sufficient condition (23)

  • [1] S. M. Ahn, H. Choi, S.-Y. Ha and H. Lee, Stochastic flocking dynamics of the Cucker-Smale model with multiplicative white noises, J. Math. Phys., 51 (2010), 103301, 17pp. doi: 10.1063/1.3496895.
    [2] S. M. AhnH. ChoiS.-Y. Ha and H. Lee, On collision-avoiding initial configurations to Cucker-Smale type flocking models, Commun. Math. Sci., 10 (2012), 625-643.  doi: 10.4310/CMS.2012.v10.n2.a10.
    [3] S. M. AhnH.-O. BaeS.-Y. HaY. Kim and H. Lim, Application of flocking mechanism to the modeling of stochastic volatility, Math. Models Methods in Appli. Sci., 23 (2013), 1603-1628.  doi: 10.1142/S0218202513500176.
    [4] P. Antoniou, A. Pitsillides, T. Blackwell and A. Engelbrecht, Employing the flocking behavior of birds for controlling congestion in autonomous decentralized networks, IEEE Congr. Evol. Comp., (2009), 1753–1761. doi: 10.1109/CEC.2009.4983153.
    [5] J. A. CañizoJ. A. Carrillo and J. Rosado, A well-posedness theory in measures for some kinetic models of collective motion, Math. Models Methods Appl. Sci., 21 (2011), 515-539.  doi: 10.1142/S0218202511005131.
    [6] J. A. CarrilloM. FornasierJ. Rosado and G. Toscani, Asymptotic flocking dynamics for the kinetic Cucker-Smale model, SIAM J. Math. Anal., 42 (2010), 218-236.  doi: 10.1137/090757290.
    [7] F. Cucker and J.-G. Dong, On the critical exponent for flocks under hierarchical leadership, Math. Models Methods Appl. Sci., 19 (2009), 1391-1404.  doi: 10.1142/S0218202509003851.
    [8] F. Cucker and J.-G. Dong, Avoiding collisions in flocks, IEEE Trans. Automat. Control, 55 (2010), 1238-1243.  doi: 10.1109/TAC.2010.2042355.
    [9] F. Cucker and J.-G. Dong, A general collision-avoiding flocking framework, IEEE Trans. Automat. Control, 56 (2011), 1124-1129.  doi: 10.1109/TAC.2011.2107113.
    [10] F. Cucker and J.-G. Dong, On flocks influenced by closest neighbors, Math. Models Methods Appl. Sci., 26 (2016), 2685-2708.  doi: 10.1142/S0218202516500639.
    [11] F. Cucker and S. Smale, Emergent behavior in flocks, IEEE Trans. Automat. Control, 52 (2007), 852-862.  doi: 10.1109/TAC.2007.895842.
    [12] F. Cucker and S. Smale, On the mathematics of emergence, Japan J. Math., 2 (2007), 197-227.  doi: 10.1007/s11537-007-0647-x.
    [13] F. Cucker and J.-G. Dong, On flocks under switching directed interaction topologies, SIAM J. Math. Anal., 79 (2019), 95-110.  doi: 10.1137/18M116976X.
    [14] P. Degond and S. Motsch, Macroscopic limit of self-driven particles with orientation interaction, C. R. Math. Acad. Sci. Paris, 345 (2007), 555-560.  doi: 10.1016/j.crma.2007.10.024.
    [15] P. Degond and S. Motsch, Continuum limit of self-driven particles with orientation interaction, Math. Models Methods Appl. Sci., 18 (2008), 1193-1215.  doi: 10.1142/S0218202508003005.
    [16] P. Degond and S. Motsch, Large scale dynamics of the persistent turning walker model of fish behavior, J. Stat. Phys., 131 (2008), 989-1021.  doi: 10.1007/s10955-008-9529-8.
    [17] P. Degond and T. Yang, Diffusion in a continuum model of self-propelled particles with alignment interaction, Math. Models Methods Appl. Sci., 20 (2010), 1459-1490.  doi: 10.1142/S0218202510004659.
    [18] J.-G. Dong and L. Qiu, Flocking of the Cucker-Smale model on general digraphs, IEEE Trans. Automat. Control, 62 (2017), 5234-5239.  doi: 10.1109/TAC.2016.2631608.
    [19] S.-Y. HaK. Lee and D. Levy, Emergence of time-asymptotic flocking in a stochastic Cucker-Smale system, Commun. Math. Sci., 7 (2009), 453-469.  doi: 10.4310/CMS.2009.v7.n2.a9.
    [20] S.-Y. HaZ. LiM. Slemrod and X. Xue, Flocking behavior of the Cucker-Smale model under rooted leadership in a large coupling limit, Quart. Appl. Math., 72 (2014), 689-701.  doi: 10.1090/S0033-569X-2014-01350-5.
    [21] S.-Y. Ha and E. Tadmor, From particle to kinetic and hydrodynamic descriptions of flocking, Kinet. Relat. Mod., 1 (2008), 415-435.  doi: 10.3934/krm.2008.1.415.
    [22] S.-Y. HaQ. Xiao and X. Zhang, Emergent dynamics of Cucker-Smale particles under the effects of random communication and incompressible fluids, J. Diff. Eq., 264 (2018), 4669-4706.  doi: 10.1016/j.jde.2017.12.020.
    [23] J. Juang and Y.-H. Liang, Avoiding collisions in Cucker-Smale flocking models under group-hierarchical multi-leadership, SIAM J. Appl. Math., 78 (2018), 531-550.  doi: 10.1137/16M1098401.
    [24] Z. Li and S.-Y. Ha, On the Cucker-Smale flocking with alternating leaders, Quart. Appl. Math., 73 (2015), 693-709.  doi: 10.1090/qam/1401.
    [25] Z. LiS.-Y. Ha and and X. Xue, Emergent phenomena in an ensemble of Cucker-Smale particles under joint rooted leadership, Math. Models Methods Appl. Sci., 24 (2014), 1389-1419.  doi: 10.1142/S0218202514500043.
    [26] Z. Li and X. Xue, Cucker-Smale flocking under rooted leadership with fixed and switching topologies, SIAM J. Appl. Math., 70 (2010), 3156-3174.  doi: 10.1137/100791774.
    [27] Z. Li and X. Xue, Cucker-Smale flocking under rooted leadership with free-will agent, Physica A, 410 (2014), 205-217.  doi: 10.1016/j.physa.2014.05.008.
    [28] C.-H. Li and S.-Y. Yang, A new discrete Cucker-Smale flocking model under hierarchical leadership, Discrete Contin. Dyn. Syst. Ser. B, 21 (2016), 2587-2599.  doi: 10.3934/dcdsb.2016062.
    [29] Y. Liu and J. Wu, Flocking and asymptotic velocity of the Cucker-Smale model with processing delay, J. Math. Anal. Appl., 415 (2014), 53-61.  doi: 10.1016/j.jmaa.2014.01.036.
    [30] J. ParkH. Kim and S.-Y. Ha, Cucker-Smale flocking with inter-particle bonding forces, IEEE Trans. Automat. Control, 55 (2010), 2617-2623.  doi: 10.1109/TAC.2010.2061070.
    [31] L. PereaP. Elosegui and G. Gómez, Extension of the Cucker-Smale control law to space flight formations, J. Guid., Control, and Dyn., 32 (2009), 527-537.  doi: 10.2514/1.36269.
    [32] B. PiccoliF. Rossi and E. Trélat, Control to flocking of the kinetic Cucker-Smale model, SIAM J. Math. Anal., 47 (2015), 4685-4719.  doi: 10.1137/140996501.
    [33] Z. Qu, Cooperative Control Of Dynamical Systems, Springer-Verlag London, 2009. doi: 10.1007/978-1-84882-325-9.
    [34] J. Shen, Cucker-Smale flocking under hierarchical leadership, SIAM J. Appl. Math., 68 (2008), 694-719.  doi: 10.1137/060673254.
    [35] J. Toner and Y. Tu, Flocks, herds, and schools: A quantitative theory of flocking, Phys. Rev. E, 58 (1998), 4828-4858.  doi: 10.1103/PhysRevE.58.4828.
    [36] C. M. Topaz and A. L. Bertozzi, Swarming patterns in a two-dimensional kinematic model for biological groups, SIAM J. Appl. Math., 65 (2004), 152-174.  doi: 10.1137/S0036139903437424.
    [37] T. VicsekA. CzirókE. Ben-JacobI. Cohen and O. Shochet, Novel type of phase transition in a system of self-driven particles, Phys. Rev. Lett., 75 (1995), 1226-1229.  doi: 10.1103/PhysRevLett.75.1226.
    [38] T. Vicsek and A. Zafeiris, Collective motion, Phys. Rep., 517 (2012), 71-140.  doi: 10.1016/j.physrep.2012.03.004.
    [39] C.-W. Wu, Synchronization in Complex Networks of Nonlinear Dynamical Systems, Singapore: World Scientific, 2007, 88–89. doi: 10.1142/6570.
  • 加载中

Figures(6)

SHARE

Article Metrics

HTML views(1818) PDF downloads(394) Cited by(0)

Access History

Other Articles By Authors

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return