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Constructions of Strict Lyapunov Functions for Discrete Time and Hybrid Time-Varying Systems [PDF]

open access: yes, 2006
We provide explicit closed form expressions for strict Lyapunov functions for time-varying discrete time systems. Our Lyapunov functions are expressed in terms of known nonstrict Lyapunov functions for the dynamics and finite sums of persistency of ...
Albertini   +24 more
core   +6 more sources

Nonlinear response of Q-boosting metasurfaces beyond the time-bandwidth limit

open access: yesNanophotonics, 2022
Resonant nanostructures, such as photonic metasurfaces, have created an unprecedented case for enhanced light–matter interactions through local field engineering. However, the presence of resonances fundamentally limits the bandwidth of such interactions.
Shafirin Pavel A.   +3 more
doaj   +1 more source

Adaptive Machine Learning for Robust Diagnostics and Control of Time-Varying Particle Accelerator Components and Beams

open access: yesInformation, 2021
Machine learning (ML) is growing in popularity for various particle accelerator applications including anomaly detection such as faulty beam position monitor or RF fault identification, for non-invasive diagnostics, and for creating surrogate models.
Alexander Scheinker
doaj   +1 more source

Finite‐time convergence for bilateral teleoperation systems with disturbance and time‐varying delays

open access: yesIET Control Theory & Applications, 2021
This paper addresses the robust finite‐time sliding mode control algorithms for nonlinear bilateral teleoperators in the presence of variable time delays and disturbances.
Phuong Nam Dao   +2 more
doaj   +1 more source

H ? filtering for stochastic singular fuzzy systems with time-varying delay [PDF]

open access: yes, 2014
This paper considers the H? filtering problem for stochastic singular fuzzy systems with timevarying delay. We assume that the state and measurement are corrupted by stochastic uncertain exogenous disturbance and that the system dynamic is modeled ...
Cai, Min   +3 more
core   +1 more source

Stability of time-varying systems in the absence of strict Lyapunov functions [PDF]

open access: yes, 2019
When a non-linear system has a strict Lyapunov function, its stability can be studied using standard tools from Lyapunov stability theory. What happens when the strict condition fails?
Ikhouane, Fayçal   +1 more
core   +2 more sources

Bipartite Consensus on Coopetition Networks With Time-Varying Delays

open access: yesIEEE Access, 2018
In this paper, the bipartite consensus problem is investigated for multiagent systems with second-order dynamics and antagonistic interactions. We consider bipartite consensus under two kinds of protocols.
Lei Tian   +3 more
doaj   +1 more source

The extinction probability in systems randomly varying in time

open access: yesNuclear Engineering and Technology, 2017
The extinction probability of a branching process (a neutron chain in a multiplying medium) is calculated for a system randomly varying in time. The evolution of the first two moments of such a process was calculated previously by the authors in a system
Imre Pázsit   +2 more
doaj   +1 more source

On enhanced time-varying distributed H systems [PDF]

open access: yesComputer Science Journal of Moldova, 2002
An enhanced time-varying distributed H system (ETVDH system) is a slightly different definition of the time-varying distributed H system (TVDH system) [9] and it was proposed by M. Margenstern and Yu.
Sergey Verlan
doaj  

Positivity and stability of fractional descriptor time–varying discrete–time linear systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2016
The Weierstrass–Kronecker theorem on the decomposition of the regular pencil is extended to fractional descriptor time-varying discrete-time linear systems. A method for computing solutions of fractional systems is proposed.
Kaczorek Tadeusz
doaj   +1 more source

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