Results 81 to 90 of about 160,178 (282)
Bayesian inverse ensemble forecasting for COVID‐19
Canadian Journal of Statistics, EarlyView.Abstract Variations in strains of COVID‐19 have a significant impact on the rate of surges and on the accuracy of forecasts of the epidemic dynamics. The primary goal for this article is to quantify the effects of varying strains of COVID‐19 on ensemble forecasts of individual “surges.” By modelling the disease dynamics with an SIR model, we solve the ...
Kimberly Kroetch, Don Estep
wiley +1 more source
Chaos and bifurcation of a nonlinear discrete prey-predator system [PDF]
Computational Ecology and Software, 2012 The discrete-time Prey-predator system obtained by two dimensional map was studied in present study. The fixed points and their stability were analyzed. Bifurcation diagram has been obtained for selected range of different parameters.
Abd-Elalim A. Elsadany +2 more
doaj
Analysis of a Chaotic Memristor Based Oscillator
Abstract and Applied Analysis, 2014 A chaotic oscillator based on the memristor is analyzed from a chaos theory viewpoint. Sensitivity to initial conditions is studied by considering a nonlinear model of the system, and also a new chaos analysis methodology based on the energy distribution
F. Setoudeh, A. Khaki Sedigh, M. Dousti
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A POSSIBILITY OF ROBUST CHAOS EMERGENCE IN LORENZ-LIKE NON-AUTONOMOUS SYSTEM
Journal of Optimization, Differential Equations and Their Applications, 2019 Robust chaos is determined by the absence of periodic windows in bifurcation diagrams and coexisting attractors with parameter values taken from some regions of the parameter space of a dynamical system. Reliable chaos is an important characteristic of a
Vasiliy Ye. Belozyorov +2 more
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Pentahedral volume, chaos, and quantum gravity
, 2013 We show that chaotic classical dynamics associated to the volume of discrete grains of space leads to quantal spectra that are gapped between zero and nonzero volume.
Haggard, Hal M.
core +3 more sources
Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley +1 more source
Physics and the foundations of economic science: comments in memory of Ilya Prigogine
Discrete Dynamics in Nature and Society, 2004 This paper discusses how the concepts of nonlinearity, discrete dynamics, chaos, and emergent order that Ilya Prigogine advanced correspond to similar ideas involved in the adaptive, evolutionary branch of economics.
Richard H. Day
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Governance Drivers of Fossil Fuel Divestment: Evidence From Global Banks
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Climate change poses increasing transition risks for the banking sector, as financial institutions remain exposed to fossil fuel activities despite growing sustainability commitments. This study examines whether corporate governance influences banks' decisions to adopt fossil fuel divestment policies.
Rosella Carè +3 more
wiley +1 more source
Droplet microfluidics: Enabling the tailored fabrication of hydrogel particles
Droplet, EarlyView.Droplet microfluidics enables precise, versatile fabrication of hydrogel particles with controlled size, composition, and structure. This review summarizes fundamental principles, engineering strategies, and emerging applications, providing a framework for advancing microfluidic hydrogel technologies.
Zhongqiao Gan, Xu Hou
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Discrete chaos in a novel two-dimensional fractional chaotic map
Advances in Difference Equations, 2018 In this paper, a two-dimensional discrete fractional reduced Lorenz map is achieved by utilizing discrete fractional calculus. By adopting the bifurcation diagrams, chaos diagram, and phase portraits, the chaotic dynamics of the two-dimensional discrete ...
Jie Ran
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