Results 11 to 20 of about 38,674 (306)

Brake orbits with minimal period estimates of first-order variant subquadratic Hamiltonian systems

open access: yesElectronic Research Archive, 2022
Under a generalized subquadratic growth condition, brake orbits are guaranteed via the homological link theorem. Moreover, the minimal period estimate is given by Morse index estimate and $ L_{0} $-index estimate.
Xiaofei Zhang, Fanjing Wang
doaj   +1 more source

Modeling and Analysis of a Three-Terminal-Memristor-Based Conservative Chaotic System

open access: yesEntropy, 2021
In this paper, a three-terminal memristor is constructed and studied through changing dual-port output instead of one-port. A new conservative memristor-based chaotic system is built by embedding this three-terminal memristor into a newly proposed four ...
Ze Wang, Guoyuan Qi
doaj   +1 more source

The generalized centrally extended Lie algebraic structures and related integrable heavenly type equations

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
There are studied Lie-algebraic structures of a wide class of heavenly type non-linear integrable equations, related with coadjoint flows on the adjoint space to a loop vector field Lie algebra on the torus.
O.Ye. Hentosh   +2 more
doaj   +1 more source

Soundscape Recognition: Explorations and Frontiers of Acoustic Scene Classification in the Digital Era [PDF]

open access: yesJisuanji gongcheng
Acoustic Scene Classification (ASC) aims to enable computers to simulate the human auditory system in the task of recognizing various acoustic environments, which is a challenging task in the field of computer audition.
PANG Xin, GE Fengpei, LI Yanling
doaj   +1 more source

Finding the closed-form solutions of dissipative oscillatory systems

open access: yesScientific Reports, 2022
This paper shows how to use the approximate Hamiltonian approach for the non-conservative system not capable of possessing Hamiltonian. Using the approximate Hamiltonian method for a non-conservative system is not possible in general. We propose a way to
Saba Irum, Imran Naeem
doaj   +1 more source

On the integrable deformations of a system related to the motion of two vortices in an ideal incompressible fluid [PDF]

open access: yesITM Web of Conferences, 2019
Altering the first integrals of an integrable system integrable deformations of the given system are obtained. These integrable deformations are also integrable systems, and they generalize the initial system.
Lăzureanu Cristian   +2 more
doaj   +1 more source

On the reducibility of a class of almost-periodic linear Hamiltonian systems and its application in Schrödinger equation

open access: yesAIMS Mathematics, 2023
In the present paper, we focus on the reducibility of an almost-periodic linear Hamiltonian system $ \frac{dX}{dt} = J[A+\varepsilon Q(t)]X, X\in \mathbb{R}^{2d} , $ where $ J $ is an anti-symmetric symplectic matrix, $ A $ is a symmetric matrix, $
Muhammad Afzal   +5 more
doaj   +1 more source

A novel Hamiltonian-based method for two-dimensional transient heat conduction in a rectangle with specific mixed boundary conditions

open access: yesJournal of Thermal Science and Technology, 2017
A novel Hamiltonian-based method is introduced to the two-dimensional (2-D) transient heat conduction in a rectangular domain with partial temperature and partial heat flux density on one boundary.
Chenghui XU   +3 more
doaj   +1 more source

Generalized Lie-algebraic structures related to integrable dispersionless dynamical systems and their application

open access: yesJournal of Mathematical Sciences and Modelling, 2018
Our review is devoted to Lie-algebraic structures and integrability properties of an interesting class of nonlinear dynamical systems called the dispersionless heavenly equations, which were initiated by Plebanski and later analyzed in a series of ...
Anatolij Prykarpatski   +3 more
doaj   +1 more source

Orbital stability of periodic standing waves of the coupled Klein-Gordon-Zakharov equations

open access: yesAIMS Mathematics, 2023
This paper investigates the orbital stability of periodic standing waves for the following coupled Klein-Gordon-Zakharov equations $ \begin{equation*} \left\{ \begin{aligned} &u_{tt}-u_{xx}+u+\alpha uv+\beta|u|^{2}u = 0, \ &v_{tt}-v_{xx} =
Qiuying Li   +2 more
doaj   +1 more source

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