Results 31 to 40 of about 1,757,011 (294)

Human Brain Networks: Spiking Neuron Models, Multistability, Synchronization, Thermodynamics, Maximum Entropy Production, and Anesthetic Cascade Mechanisms

open access: yesEntropy, 2014
Advances in neuroscience have been closely linked to mathematical modeling beginning with the integrate-and-fire model of Lapicque and proceeding through the modeling of the action potential by Hodgkin and Huxley to the current era.
Wassim M. Haddad   +2 more
doaj   +1 more source

Compactification for asymptotically autonomous dynamical systems: theory, applications and invariant manifolds [PDF]

open access: yes, 2020
We develop a general compactification framework to facilitate analysis of nonautonomous ODEs where nonautonomous terms decay asymptotically. The strategy is to compactify the problem: the phase space is augmented with a bounded but open dimension and ...
S. Wieczorek, Chun-ming Xie, C. Jones
semanticscholar   +1 more source

Existence of solution to an evolution equation and a justification of the DSM for equations with monotone operators [PDF]

open access: yes, 2009
An evolution equation, arising in the study of the Dynamical Systems Method (DSM) for solving equations with monotone operators, is studied in this paper.
Hoang, N. S., Ramm, A. G.
core   +5 more sources

Topological dynamics and linear differential systems

open access: yesJournal of Differential Equations, 1982
Topological dynamics and linear differential ...
JOHNSON, RUSSELL ALLAN, R. Ellis
openaire   +3 more sources

Forward and Adjoint Sensitivity Computation of Chaotic Dynamical Systems [PDF]

open access: yes, 2012
This paper describes a forward algorithm and an adjoint algorithm for computing sensitivity derivatives in chaotic dynamical systems, such as the Lorenz attractor.
Eyink   +11 more
core   +2 more sources

NeuralSim: Augmenting Differentiable Simulators with Neural Networks [PDF]

open access: yesIEEE International Conference on Robotics and Automation, 2020
Differentiable simulators provide an avenue for closing the sim-to-real gap by enabling the use of efficient, gradient-based optimization algorithms to find the simulation parameters that best fit the observed sensor readings.
Eric Heiden   +4 more
semanticscholar   +1 more source

Robust Stability of a Class of Uncertain Lur'e Systems of Neutral Type

open access: yesAbstract and Applied Analysis, 2012
This paper deals with the problem of stability for a class of Lur’e systems with interval time-varying delay and sector-bounded nonlinearity. The interval time-varying delay function is not assumed to be differentiable.
W. Weera, P. Niamsup
doaj   +1 more source

The dynamical systems approach to differential equations [PDF]

open access: yesBulletin of the American Mathematical Society, 1984
This paper contains three chapters, as follows: Chapter I: Historical background; Chapter II: Convergence, chaos and stability; Chapter III: Convergence and stability in monotone flows. The author gives a remarkable survey of the basic themes in dynamical systems theory.
openaire   +4 more sources

Translation equation and Sincov’s equation – A historical remark

open access: yesESAIM: Proceedings and Surveys, 2014
Gottlob Frege (1848 – 1925), the world famous logician was also a pioneer in iteration theory. His habilitation thesis “Rechnungsmethoden, die sich auf eine Erweiterung des Grössenbegriffes gründen” (“Methods of Calculation based on
Gronau Detlef
doaj   +1 more source

Covariant gauge fixing and Kuchar decomposition [PDF]

open access: yes, 1999
The symplectic geometry of a broad class of generally covariant models is studied. The class is restricted so that the gauge group of the models coincides with the Bergmann-Komar group and the analysis can focus on the general covariance.
A. Ashtekar   +33 more
core   +3 more sources

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