We study coexistence in discrete time multi-type frog models. first show that for two types of particles on $\mathbb{Z}^d$, $d\geq2$, any jumping parameters $p_1, p_2 \in (0,1)$, occurs with positive probability sufficiently rich deterministic initial configuration. extend this to the case random distribution particles. question multiple and $2^d$ $\mathbb{Z}^d$ enough also an instance infinite...

In this paper, we study a multi-symplectic scheme for three dimensional Maxwell’s equations in a simple medium. This is a system of PDEs with multi-symplectic structures. We prove that this multi-symplectic scheme preserves the discrete version of local and global energy conservation law and the discrete divergence. Furthermore, we extend the discussion to several dispersion properties of the m...

In this paper, the relationship between time and frequency domain joint channel estimation (JCE) in multi-branch, i.e., multi-user and/or multiple antenna, systems is explained. It is proved that the design criterion of optimum pilots for frequency domain JCE can be deduced from the design criterion of optimum pilots for time domain JCE, and vice versa. This uncovers that the optimum pilots in ...

IVith tl7e emerging applications of multi-agent systems, there is aluays a need for simulation to i~ertfi the results before actual implementation. Multi-agent sintulafion provides a test bed for several soflcompziting algorithms like f i z zy logic, learning automata, evolutionary olgorithms, etc. In this paper we discuss the fusion of these saff-computing methodologies and existing tools for ...

The paper contains an evaluation of the modeling multi-agent systems methods in the context of discrete event dynamic systems in technical and industrial settings. Also the ease of implementing solutions of common types of dynamic discrete models in Erlang language is considered and is showing that programming in Erlang / OTP is more suitable for multi-agent systems design compared to other pla...

The Sliding Mode Control (SMC) is well known by its robustness to parameter uncertainties or external disturbances. The repetitive control (RC) is able to track or reject periodic and multi-periodic signals. This paper presents a new control strategy as a combination of a Sliding Mode approach and Repetitive Control to reject periodic and multi-periodic disturbances in the case of nonlinear mul...