A REVISIT TO THE CONSENSUS FOR LINEARIZED VICSEK MODEL UNDER JOINT ROOTED LEADERSHIP VIA A SPECIAL MATRIX

作者：Li Zhuchun^*; Xue Xiaoping; Ha Seung Yeal

来源：Networks and Heterogeneous Media, 2014, 9(2): 335-351.

DOI：10.3934/nhm.2014.9.335

• The Vicsek model
• joint rooted leadership
• consensus
• (sp) matrix
• maximum Lyapunov exponent

We address the exponential consensus problem for the linearized Vicsek model which was introduced by Jadbabaie et al. in [10] under a joint rooted leadership via the (sp) matrices. This model deals with self-propelled particles moving in the plane with the same speed but different headings interacting with neighboring agents by a linear relaxation rule. When the time- varying switching topology of the neighbor graph satisfies some weak connectivity condition, namely, "joint connectivity condition" in the spatial-temporal domain, it is well known that the consensus for the linearized Vicsek model can be achieved asymptotically. In this paper, we extend the theory of (sp) matrices and apply it to revisit this asymptotic consensus problem and give an explicit estimate on the maximum Lyapunov exponent, when the underlying network topology satisfies the joint rooted leadership which is directed and non-symmetric.

• 出版日期2014-6
• 单位哈尔滨工业大学