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作者：Oliva, Gabriele; Franceschelli, Mauro; Gasparri, Andrea; Scala, Antonio
作者单位：University Campus Bio-Medico - Rome Italy; University of Cagliari; Roma Tre University; Consiglio Nazionale delle Ricerche (CNR); Istituto dei Sistemi Complessi (ISC-CNR)
摘要：In this article, we develop a general open multiagent systems (OMAS) framework over undirected graphs where the agents' interaction is, in general, nonlinear, time-varying, and heterogeneous, in that the agents interact with different pairwise interaction rules for each link, possibly nonlinear, which may change over time. In particular, assuming the agents interact by exchanging flows, which modify their states, our framework guarantees that the sum of the states of agents participating in th...
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作者：Chen, Yu-Jiao; Li, Xu-Guang; Fan, Gao-Xia; Zhang, Yingwei
作者单位：Northeastern University - China
摘要：This article considers the consensus of a general class of second-order multiagent systems (MASs) with time delays, where the controller is of the common proportional and derivative (PD) type. All the delay and the controller gains are treated as free parameters in this article, and our objective is to develop a parameter-space approach that has not been reported in the literature. First, we adopt the complete stability analysis w.r.t. delay under a given PD controller for the corresponding ch...
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作者：Dalin, Omri; Ofir, Ron; Bar-Shalom, Eyal; Ovseevich, Alexander; Bullo, Francesco; Margaliot, Michael
作者单位：Tel Aviv University; University of California System; University of California Santa Barbara
摘要：Compound matrices have found applications in many fields of science including systems and control theory. In particular, a sufficient condition fork-contraction is that a logarithmic norm (also called matrix measure)of the k-additive compound of the Jacobian is uniformly negative. However, this computation may be difficult to perform analytically and expensive numerically because the k-additive compound of an n x n matrix has dimensions((n)(k))x((n)(k)). This article establishes a duality rela...
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作者：Ju, Xingxing; Li, Chuandong; He, Xing; Feng, Gang
作者单位：Southwest University - China; City University of Hong Kong
摘要：This article proposes a finite-time converging proximal dynamic model (FPD) to deal with equilibrium problems. A distinctive feature of the FPD is its fast and finite-time convergence, in contrast to conventional proximal dynamic methods. It is shown that the solution of the proposed FPD converges to the solution of the corresponding equilibrium problems in finite-time under some mild conditions. Then the proposed FPD is applied to solve problems of nonsmooth composite optimization and absolut...
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作者：Min, Xiao; Baldi, Simone; Yu, Wenwu; Cao, Jinde
作者单位：Southeast University - China; Yonsei University
摘要：A low-complexity funnel controller is presented for high-order nonlinear multiagent systems with unknown dynamics. The term low-complexity is used in the literature for controllers based on memoryless nonlinear feedback, with no function approximation to estimate the unknown dynamics. Compared with existing low-complexity controllers, this work reduces the nonlinear terms in the memoryless feedback, which requires a dedicated stability analysis. A comparative numerical study further illustrate...
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作者：Elamvazhuthi, Karthik; Berman, Spring
作者单位：University of California System; University of California Riverside; Arizona State University; Arizona State University-Tempe
摘要：In this article, we consider the problem of stabilizing a class of degenerate stochastic processes, which are constrained to a bounded Euclidean domain or a compact smooth manifold, to a given target probability density. This stabilization problem arises in the field of swarm robotics, for example, in applications where a swarm of robots is required to cover an area according to a target probability density. Most existing works on modeling and control of robotic swarms that use partial differe...
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作者：Ma, Tianfu; Xu, Juanjuan; Wang, Wei; Zhang, Huanshui
作者单位：Shandong University; Shandong University of Science & Technology
摘要：In this article, we consider the discrete-time rational expectations model with state delays. In particular, the dynamic equation relies both on the history of states and the conditional expectation of the future states. The novelty of this article lies in transforming the solvability of the rational expectations model to that of the forward and backward stochastic difference equations (FBSDEs). The main contribution is to obtain the (unique) solvability and the explicit solutions for the FBSD...
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作者：Wu, Shizhen; Liang, Xiao; Fang, Yongchun; He, Wei
作者单位：Nankai University; Nankai University
摘要：The geometric maneuvering problem for underactuated vertical takeoff and landing vehicles is considered in this article. First, driven by the demands in this study, the input-to-state stability (ISS) theory is extended to the closed set case with input restriction considered. Then, the inner-outer loop hierarchical paradigm, originally proposed for tracking, is modified for the maneuvering problem, based on which the maneuvering problem is formulated as a closed set stabilization problem. Then...
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作者：Fang, Xu; Xie, Lihua
作者单位：Nanyang Technological University
摘要：This article studies the problem of distributed formation maneuver control of multiagent systems via complex Laplacian. We will show how to change the translation, scaling, rotation, and also the shape of formation continuously by only tuning the positions of the leaders in both 2-D and 3-D spaces, where the rotation of formation in the 3-D space is realized by changing the yaw angle, pitch angle, and roll angle of formation sequentially. Compared with real-Laplacian-based methods, the first a...
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作者：Tai, Ruochen; Lin, Liyong; Su, Rong
作者单位：Nanyang Technological University
摘要：This work investigates the existence of fortified supervisors against covert actuator attackers. For a supervisor $S$ that is nonresilient against covert actuator attackers, a fortified supervisor $S<^>{\prime }$ satisfies two requirements: 1) $S<^>{\prime }$ is resilient against any covert actuator attacker, and 2) the original closed-behavior of the closed-loop system under $S$ is preserved. We design a sound and complete procedure to show the problem of determining the existence of a fortif...
