Results 41 to 50 of about 8,925,121 (268)

Equation of motion and subsonic-transonic transitions of rectilinear edge dislocations: A collective-variable approach

, 2014
A theoretical framework is proposed to derive a dynamic equation motion for rectilinear dislocations within isotropic continuum elastodynamics. The theory relies on a recent dynamic extension of the Peierls-Nabarro equation, so as to account for core ...
A. I. Neishtadt, A. I. Neishtadt, A. I. Neishtadt, A. I. Neishtadt, C. Lanczos, F. Lund, G. Barton, H. Cartan, J. D. Jackson, J. P. Hirth, J. Weertman, J. Weertman, M. Bonnet, M. Peyrard, O. M. Braun, P. M. Morse, S. H. Strogatz, V. I. Al'shitz, V. I. Al'shitz, Yves-Patrick Pellegrini   +19 more
core   +3 more sources

Asymptotic Convergence of the Solutions of a Dynamic Equation on Discrete Time Scales

, 2012
The paper investigates a dynamic equation Δ𝑦(𝑡𝑛)=𝛽(𝑡𝑛)[𝑦(𝑡𝑛−𝑗)−𝑦(𝑡𝑛−𝑘)] for 𝑛→∞, where 𝑘 and 𝑗 are integers such that 𝑘>𝑗≥0, on an arbitrary discrete time scale 𝕋∶={𝑡𝑛} with 𝑡𝑛∈ℝ, 𝑛∈ℤ∞𝑛0−𝑘={𝑛0−𝑘,𝑛0 ...
J. Diblík, M. Ruzicková, Z. Šmarda, Zuzana Sutá   +3 more
semanticscholar   +1 more source

A limit set trichotomy for order-preserving systems on time scales

Electronic Journal of Differential Equations, 2004
In this paper we derive a limit set trichotomy for abstract order-preserving 2-parameter semiflows in normal cones of strongly ordered Banach spaces. Additionally, to provide an example, Muller's theorem is generalized to dynamic equations on arbitrary ...
Christian Poetzsche, Stefan Siegmund
doaj  

Oscillation criterion of Kneser type for half-linear second-order dynamic equations with deviating arguments

AIMS Mathematics
This paper employed the well-known Riccati transformation method to deduce a Kneser-type oscillation criterion for second-order dynamic equations. These results are considered an extension and improvement of the known Kneser results for second-order ...
Taher S. Hassan, Amir Abdel Menaem , Yousef Jawarneh, Naveed Iqbal , Akbar Ali   +4 more
doaj   +1 more source

Oscillation criteria for second-order nonlinear delay dynamic equations of neutral type

Advances in Difference Equations, 2018
We investigate oscillatory behavior of solutions to a class of second-order nonlinear neutral delay dynamic equations with nonpositive neutral coefficients. In particular, we study the corresponding noncanonical neutral differential equations.
Ming Zhang, Wei Chen, MMA El-Sheikh, RA Sallam, AM Hassan, Tongxing Li   +5 more
doaj   +1 more source

Hamiltonian equation of motion and depinning phase transition in two-dimensional magnets

, 2012
Based on the Hamiltonian equation of motion of the $\phi^4$ theory with quenched disorder, we investigate the depinning phase transition of the domain-wall motion in two-dimensional magnets.
B. Zheng, Bustingorry S., Caiani L., Dong R. H., Jost M., N. J. Zhou, Nowak U., Qin X. P., R. H. Dong, Zhou N. J.   +9 more
core   +1 more source

Exponential P-stability of stochastic $\nabla$-dynamic equations on disconnected sets

Electronic Journal of Differential Equations, 2015
The aim of this article is to consider the existence of solutions, finiteness of moments, and exponential p-stability of stochastic $\nabla$-dynamic equations on an arbitrary closed subset of $\mathbb{R}$, via Lyapunov functions.
Huu Du Nguyen, Thanh Dieu Nguyen, Anh Tuan Le   +2 more
doaj  

ESTIMASI PARAMETER PADA SISTEM MODEL PERSAMAAN SIMULTAN DATA PANEL DINAMIS DENGAN METODE 2 SLS GMM-AB

Media Statistika, 2018
Single equation models ignore interdependencies or two-way relationships between response variables. The simultaneous equation model accommodates this two-way relationship form.
Arya Fendha Ibnu Shina
doaj   +1 more source

Simplification of Galactic Dynamic equations [PDF]

Symmetry, 2020
Most fully developed galaxies have vivid spiral structure, but the formation and evolution of spiral structure is still a mystery that is not fully understood in astrophysics. We find that the currently used equations of galactic dynamics contain some unreasonable components.
openaire   +2 more sources

A Lyapunov Function For Logistic Equation On Time Scales

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this study we focus on the stability of dynamic logistic equation which is used in single species population dynamics. Here we have introduced a quadratic Lyapunov function for generalized dynamic logistic equation on time scales.
Veysel Fuat Hatipoğlu
doaj   +1 more source