479 citations · 4.3k across the 100 of their papers we have counts for
6 papers · 1 filter
On the security defects of an image encryption scheme
Chengqing Li, Shujun Li, Muhammad Asim +3
This paper studies the security of a recently-proposed chaos-based image encryption scheme, and points out the following problems: 1) there exist a number of invalid keys and weak…
Fixed-time consensus of multiple double-integrator systems under directed topologies: A motion-planning approach
Yongfang Liu, Yu Zhao, Wei Ren +1
This paper investigates the fixed-time consensus problem under directed topologies. By using a motion-planning approach, a class of distributed fixed-time algorithms are developed…
Designing Distributed Fixed-Time Consensus Protocols for Linear Multi-Agent Systems Over Directed Graphs
Yu Zhao, Yongfang Liu, Guanrong Chen
This technical note addresses the distributed fixed-time consensus protocol design problem for multi-agent systems with general linear dynamics over directed communication graphs.…
Sensitive dependence and transitivity of fuzzified dynamical systems
Xinxing Wu, Xiong Wang, Guanrong Chen
This paper proves that a set-valued dynamical system is sensitively dependent on initial conditions (resp., -sensitive, multi-sensitive) if and only if its -fuzzifi…
On the large deviations theorem of weaker types
Xinxing Wu, Xiong Wang
In this paper, we introduce the concepts of the large deviations theorem of weaker types, i.e., type I, type I', type II, type II', type III, and type III', and present a systemati…
Dynamics of the Zeraoulia-Sprott map revisited
G. Chen, E. V. Kudryashova, N. V. Kuznetsov +1
In the paper "Some Open Problems in Chaos Theory and Dynamics" by Zeraoulia and Sprott, the two-dimensional map (x,y) -> (-ax(1+y^2)^{-1}, x+by) was considered and the problem of a…