This paper studies the problem of mean square exponential stability (ES) for a class of impulsive stochastic infinite-dimensional systems with Poisson jumps (ISIDSP) using aperiodically intermittent control (AIC). It provides a detailed analysis of impulsive disturbances, and the related inequalities are given for the two cases when the impulse perturbation occurs at the start time points of the control and rest intervals or non-startpoints, respectively. Additionally, in virtue of Yosida approximating systems, combining with the Lyapunov method, graph theory and the above inequalities, criteria for ES of the above impulsive stochastic infinite-dimensional systems are established under AIC for these two perturbation scenarios. These criteria elucidate the effects of the impulsive perturbation strength, the ratio of control period, to rest period, and network topology on ES. Finally, the theoretical results are applied to a class of neural networks with reaction-diffusion processes, and the effectiveness of the findings is validated through numerical simulations.
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http://dx.doi.org/10.1016/j.neunet.2025.107331 | DOI Listing |
Neural Netw
March 2025
College of Mathematics and System Science, Shandong University of Science and Technology, Qingdao, 266590, China.
This paper studies the problem of mean square exponential stability (ES) for a class of impulsive stochastic infinite-dimensional systems with Poisson jumps (ISIDSP) using aperiodically intermittent control (AIC). It provides a detailed analysis of impulsive disturbances, and the related inequalities are given for the two cases when the impulse perturbation occurs at the start time points of the control and rest intervals or non-startpoints, respectively. Additionally, in virtue of Yosida approximating systems, combining with the Lyapunov method, graph theory and the above inequalities, criteria for ES of the above impulsive stochastic infinite-dimensional systems are established under AIC for these two perturbation scenarios.
View Article and Find Full Text PDFPhys Biol
March 2025
Department of Chemical and Biological Engineering, Koc University, Istanbul, Turkey.
This study explores the relationship between residue fluctuations and molecular communication in proteins, emphasizing the role of these dynamics in allosteric regulation. We employ computational tools including the Gaussian network model, mutual information, and interaction information, to analyze how stochastic interactions among residues contribute to functional interactions while also introducing noise. Our approach is based on the postulate that residues experience continuous stochastic bombardment from impulses generated by their neighbors, forming a complex network characterized by small-world scaling topology.
View Article and Find Full Text PDFPhys Rev E
January 2025
North Carolina State University, Chemical and Biomolecular Engineering, Raleigh, North Carolina 27606, USA.
We introduce a stochastic method for simulating the effect of an external magnetic field on coarse-grained models of magnetic colloids for use in discontinuous molecular dynamics (DMD) simulations. Our method for simulating an external field is illustrated with a coarse-grained model for magnetic squares in two dimensions. Square-shaped particles are represented as four disks bonded together in a 2×2 lattice configuration to create a hard colloidal geometry.
View Article and Find Full Text PDFJ Opt Soc Am A Opt Image Sci Vis
October 2024
Matrix functions are, of course, indispensable and of primary concern in polarization optics when the vector nature of light has been considered. This paper is devoted to investigating matrix-based Fourier analysis of two-dimensional matrix signals and systems. With the aid of the linearity and the superposition integral of matrix functions, the theory of linear invariant matrix systems has been constructed by virtue of six matrix-based integral transformations [i.
View Article and Find Full Text PDFISA Trans
January 2025
School of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266061, China; Qingdao Innovation Center of Artificial Intelligence Ocean Technology, Qingdao 266061, China; The Research Institute for Mathematics and Interdisciplinary Sciences, Qingdao University of Science and Technology, Qingdao 266061, China. Electronic address:
This paper considers the event-triggered adaptive fault-tolerant control (FTC) problem for a class of stochastic nonlinear systems suffering from finite number of actuator failures and abrupt system external failure. Unlike existing event-triggered mechanisms (ETMs), this paper proposes an improved switching threshold mechanism (STM) that effectively addresses the potential system security hazards caused by large signal impulses when both the magnitude size of the controller and its rate of change are too large, while also saving energy consumption. Especially, when the occurrence of both actuator failure and system external failure may lead to over-change rate of the controller, by using the multi-dimensional Taylor network (MTN) approximation technique, the adaptive fault-tolerant control scheme designed based on the improved STM not only has lower resource consumption, but also indirectly improves the control performance of the system by ensuring the system security operation.
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