Results 21 to 30 of about 104,002 (268)

Simple and complex dynamics in the model of evolution of two populations coupled by migration with non-overlapping generations [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2022
Purpose is to study the mechanisms leading to genetic divergence (stable genetic differences between two adjacent populations). We considered the following classical model situation. Populations are panmictic with Mendelian rules of inheritance.
Kulakov, Matvej Pavlovich   +1 more
doaj   +1 more source

Single-Mode and Dual-Mode Nongomogeneous Dissipative Structures in the Nonlocal Model of Erosion

open access: yesМоделирование и анализ информационных систем, 2015
We consider a periodic boundary-value problem for a nonlinear equation with the deviating spatial argument in the case when the deviation is small. This equation is called a spatially nonlocal erosion equation.
A. M. Kovaleva, D. A. Kulikov
doaj   +1 more source

A Computational Study of Chaotic Flow and Heat Transfer within a Trapezoidal Cavity

open access: yesEnergies, 2023
Numerical findings of natural convection flows in a trapezoidal cavity are reported in this study. This study focuses on the shift from symmetric steady to chaotic flow within the cavity.
Md. Mahafujur Rahaman   +3 more
doaj   +1 more source

Bifurcations of stationary manifolds formed in the neighborhood of equilibrium in the dynamic cutting system

open access: yesAdvanced Engineering Research, 2015
The work objective is to study the formation of orbitally asymptotically stable limit cycles and two-dimensional invariant tori including bifurcations near the attracting sets. The investigators use primarily methods based on the mathematic simulation of
Vilor Lavrentyevich Zakovorotny   +2 more
doaj   +1 more source

Bifurcations and synchronization using an integrated programmable chaotic circuit [PDF]

open access: yes, 1997
This paper presents a CMOS chip which can act as an autonomous stand-alone unit to generate different real-time chaotic behaviors by changing a few external bias currents. In particular, by changing one of these bias currents, the chip provides different
Ceballos Cáceres, Joaquín Francisco   +3 more
core   +1 more source

A case of forming chaotic attractors in cutting dynamic system

open access: yesAdvanced Engineering Research, 2015
The conditions under which the chaotic dynamics is formed during the materials processing by cutting are analyzed. In the previous studies, in case of loss of sta-bility of the cutting process, limit cycles or invariant tori are generated in the ...
Vilor Lavrentyevich Zakovorotny   +2 more
doaj   +1 more source

Bifurcation transitions in dynamic systems of pulse voltage regulator

open access: yesФизика волновых процессов и радиотехнические системы, 2020
In this article bifurcations in nonlinear dynamical systems are considered and special attention is paid to bifurcations-crises, which are identified with catastrophes in systems.
Andrei A. Voronoi   +2 more
doaj   +1 more source

Hopf bifurcations in time-delay systems with band-limited feedback [PDF]

open access: yes, 2005
We investigate the steady-state solution and its bifurcations in time-delay systems with band-limited feedback. This is a first step in a rigorous study concerning the effects of AC-coupled components in nonlinear devices with time-delayed feedback.
Abarbanel   +31 more
core   +1 more source

Introduction to bifurcation-theory [PDF]

open access: yes, 1991
The theory of bifurcation from equilibria based on center-manifold reductio, and Poincare-Birkhoff normal forms is reviewed at an introductory level. Both differential equations and maps are discussed, and recent results explaining the symmetry of the ...
Crawford, J. D.
core   +1 more source

On the interaction of a system with multifrequency oscillations with a chaotic generator [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of the work: to study the influence of the dynamics of a chaotic system on a system with multi-frequency quasi-periodicity and the Landau-Hopf scenario.
Kuznetsov, Aleksandr Petrovich   +1 more
doaj   +1 more source

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