Results 11 to 20 of about 46,048,977 (302)

Autonomous dynamical system approach for f(R) gravity [PDF]

open access: yes, 2017
In this work we shall investigate the cosmological dynamical system of $f(R)$ gravity, by constructing it in such a way so that it is rendered autonomous.
S. Odintsov, V. Oikonomou
semanticscholar   +1 more source

A Quantized Hill’s Dynamical System

open access: yesAdvances in Astronomy, 2021
In this paper, we present a modified version of Hill’s dynamical system that is called the quantized Hill’s three-body problem in the sense that the equations of motion for the classical Hill’s problem are now derived under the effects of quantum ...
Elbaz I. Abouelmagd   +2 more
doaj   +1 more source

Synthesis of recurrent neural networks for dynamical system simulation [PDF]

open access: yesNeural Networks, 2015
We review several of the most widely used techniques for training recurrent neural networks to approximate dynamical systems, then describe a novel algorithm for this task.
Adam Trischler, G. D'Eleuterio
semanticscholar   +1 more source

New Dynamical State and Habitability of the HD 45364 Planetary System [PDF]

open access: yes, 2022
Planetary systems with multiple giant planets provide important opportunities to study planetary formation and evolution. The HD 45364 system hosts two giant planets that reside within the Habitable Zone (HZ) of their host star and was the first system ...
Kane, Stephen R.   +4 more
core   +1 more source

Chaotic Pulse-Shaping Filter Based on Root-Raised-Cosine Division

open access: yesEntropy, 2023
Chaotic baseband wireless communication system (CBWCS) suffers bit error rate (BER) degradation due to their intrinsic intersymbol interference (ISI). To this end, an ISI-free chaotic filter based on root-raised-cosine (RRC) division is constructed to ...
Xiaosi Tian, Zulin Wang, Qin Huang
doaj   +1 more source

Traveling waves for a lattice dynamical system arising in a diffusive endemic model [PDF]

open access: yes, 2016
This paper is concerned with a lattice dynamical system modeling the evolution of susceptible and infective individuals at discrete niches. We prove the existence of traveling waves connecting the disease-free state to non-trivial leftover concentrations.
Yan-Yu Chen, Jong-Shenq Guo, F. Hamel
semanticscholar   +1 more source

Linear predictors for nonlinear dynamical systems: Koopman operator meets model predictive control [PDF]

open access: yesat - Automatisierungstechnik, 2016
This paper presents a class of linear predictors for nonlinear controlled dynamical systems. The basic idea is to lift (or embed) the nonlinear dynamics into a higher dimensional space where its evolution is approximately linear.
Milan Korda, I. Mezić
semanticscholar   +1 more source

Synchronization of dissipative dynamical systems driven by non-Gaussian Lévy noises [PDF]

open access: yes, 2010
Dynamical systems driven by Gaussian noises have been considered extensively in modeling, simulation, and theory. However, complex systems in engineering and science are often subject to non-Gaussian fluctuations or uncertainties.
Kloeden, Peter E.   +3 more
core   +1 more source

Lower semicontinuity of attractors for non-autonomous dynamical systems [PDF]

open access: yes, 2009
This paper is concerned with the lower semicontinuity of attractors for semilinear non-autonomous differential equations in Banach spaces. We require the unperturbed attractor to be given as the union of unstable manifolds of time-dependent hyperbolic
Langa, José A.   +3 more
core   +1 more source

Dynamical Evolution of the Early Solar System [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2018
Several properties of the Solar System, including the wide radial spacing of the giant planets, can be explained if planets radially migrated by exchanging orbital energy and momentum with outer disk planetesimals. Neptune's planetesimal-driven migration,
D. Nesvorný
semanticscholar   +1 more source

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