Results 1 to 10 of about 4,498,304 (271)

Large Time-Varying Parameter VARs [PDF]

open access: yesJournal of Econometrics, 2012
In this paper, we develop methods for estimation and forecasting in large time-varying parameter vector autoregressive models (TVP-VARs). To overcome computational constraints, we draw on ideas from the dynamic model averaging literature which achieve ...
Banbura   +26 more
core   +11 more sources

Oblique Parameter Constraints on Large Extra Dimensions [PDF]

open access: yesPhysical Review D, 2000
We consider the Kaluza-Klein scenario in which gravity propagates in the $4+n$ dimensional bulk of spacetime and the Standard Model particles are confined to a 3-brane.
D. Kennedy   +43 more
core   +4 more sources

Travelling Waves in the Ring of Coupled Oscillators with Delayed Feedback

open access: yesMathematics, 2023
We studied travelling waves in N nonlinear differential equations with a delay and large parameter. This system is important because it can be regarded as a phenomenological model of N-coupled neuron-like oscillators with delay.
Alexandra Kashchenko   +2 more
doaj   +1 more source

Asymptotics of Solutions to a Differential Equation with Delay and Nonlinearity Having Simple Behaviour at Infinity

open access: yesMathematics, 2022
In this paper, we study nonlocal dynamics of a nonlinear delay differential equation. This equation with different types of nonlinearities appears in medical, physical, biological, and ecological applications.
Alexandra Kashchenko
doaj   +1 more source

Genetic parameter analysis of reproductive traits in Large White pigs [PDF]

open access: yesAnimal Bioscience, 2022
Objective The primary objective of this study was to determine the genetic parameters for reproductive traits among Large White pigs, including the following traits: total number born (TNB), number born alive (NBA), litter birth weight (LBW), average ...
Guanghui Yu, Chuduan Wang, Yuan Wang
doaj   +1 more source

Uniqueness for a class p-Laplacian problems when a parameter is large [PDF]

open access: yesOpuscula Mathematica, 2023
We prove uniqueness of positive solutions for the problem \[-\Delta_{p}u=\lambda f(u)\text{ in }\Omega,\ u=0\text{ on }\partial \Omega,\] where \(1\lt p\lt 2\) and \(p\) is close to 2, \(\Omega\) is bounded domain in \(\mathbb{R}^{n}\) with smooth ...
B. Alreshidi, D.D. Hai
doaj   +1 more source

Dependence of Dynamics of a System of Two Coupled Generators with Delayed Feedback on the Sign of Coupling

open access: yesMathematics, 2020
In this paper, we study the nonlocal dynamics of a system of delay differential equations with large parameters. This system simulates coupled generators with delayed feedback. Using the method of steps, we construct asymptotics of solutions.
Alexandra Kashchenko
doaj   +1 more source

Asymptotics of Solutions of the Generalized Hutchinson’s Equation

open access: yesМоделирование и анализ информационных систем, 2015
We discuss the dynamics of the Hutchinson’s equation and its generalizations. An estimate of the global stability region of a positive steady state is obtained. The main results refer to existence, stability and asymptotics of a slow oscillating solution.
S. A. Kaschenko
doaj   +1 more source

Relaxation Cycles in a Model of Synaptically Interacting Oscillators

open access: yesМоделирование и анализ информационных систем, 2017
In this paper the mathematical model of a neural network with a ring synaptic interaction elements is considered. The model is a system of scalar nonlinear differential-difference equations, the right parts of which depend on a large parameter. The unknown
Margarita M. Preobrazhenskaia
doaj   +1 more source

Synchronization in networked systems with large parameter heterogeneity

open access: yesCommunications Physics, 2023
Systems that synchronize in nature are intrinsically different from one another, with possibly large differences from system to system. While a vast part of the literature has investigated the emergence of network synchronization for the case of small ...
Amirhossein Nazerian   +2 more
doaj   +1 more source

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