Results 71 to 80 of about 754,834 (272)

Random Attractors for Stochastic Retarded 2D-Navier-Stokes Equations with Additive Noise

open access: yesJournal of Function Spaces, 2018
In this paper, the existence and the upper semicontinuity of a pullback attractor for stochastic retarded 2D-Navier-Stokes equation on a bounded domain are obtained.
Xiaoyao Jia, Xiaoquan Ding
doaj   +1 more source

Weak topologies for Carath\'eodory differential equations. Continuous dependence, exponential Dichotomy and attractors [PDF]

open access: yes, 2018
We introduce new weak topologies and spaces of Carath\'eodory functions where the solutions of the ordinary differential equations depend continuously on the initial data and vector fields.
Longo, Iacopo P.   +2 more
core   +2 more sources

Pullback Attractors for a Nonautonomous Retarded Degenerate Parabolic Equation [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2020
This paper is devoted to a nonautonomous retarded degenerate parabolic equation. We first show the existence and uniqueness of a weak solution for the equation by using the standard Galerkin method. Then we establish the existence of pullback attractors for the equation by proving the existence of compact pullback absorbing sets and the pullback ...
Jie Xin, Jie Xin, Hui Liu, Fahe Miao
openaire   +3 more sources

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
Abreu   +9 more
core   +1 more source

A PCA and Mesh Adaptation‐Based Format for High Compression of Earth Observation Optical Data With Applications in Agriculture

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 12, 30 June 2025.
ABSTRACT Earth Observation optical data are critical for agriculture, supporting tasks like vegetation health monitoring, crop classification, and land use analysis. However, the large size of multispectral and hyperspectral datasets poses challenges for storage, transmission, and processing, particularly in precision farming and resource‐limited ...
Luca Liverotti   +3 more
wiley   +1 more source

Asymptotic behavior of pullback attractors for non-autonomous micropolar fluid flows in 2D unbounded domains

open access: yesElectronic Journal of Differential Equations, 2018
In this article, we investigate the pullback asymptotic behavior of solutions for a non-autonomous micropolar fluid flows in 2D unbounded channel-like domains. First, applying the technique of truncation functions, decomposition of spatial domain, and
Wenlong Sun, Yeping Li
doaj  

Dynamics of wave equations with moving boundary [PDF]

open access: yes, 2017
This paper is concerned with long-time dynamics of weakly damped semilinear wave equations defined on domains with moving boundary. Since the boundary is a function of the time variable the problem is intrinsically non-autonomous.
Ma, To Fu   +2 more
core   +1 more source

Impact of Angiotensin‐Converting Enzyme Inhibitor on Coronary Artery Calcification Evaluated by Intravascular Ultrasound: A Retrospective Cohort Study

open access: yesHealth Science Reports, Volume 8, Issue 6, June 2025.
ABSTRACT Background and Aims Coronary artery calcification (CAC) is a predictor of poor prognosis after percutaneous coronary intervention (PCI), and its treatment depends on calcification severity assessed by intravascular imaging such as intravascular ultrasound (IVUS).
Daisuke Kanda   +8 more
wiley   +1 more source

Pullback Exponential Attractors for Nonautonomous Klein-Gordon-Schrödinger Equations on Infinite Lattices

open access: yesAbstract and Applied Analysis, 2013
This paper proves the existence of the pullback exponential attractor for the process associated to the nonautonomous Klein-Gordon-Schrödinger equations on infinite lattices.
Chunqiu Li, Min Zhao, Caidi Zhao
doaj   +1 more source

Almost Periodic Passive Tracer Dispersion [PDF]

open access: yes, 1999
The authors investigate the impact of external sources on the pattern formation of concentration profiles of passive tracers in a two-dimensional shear flow.
Duan, Jinqiao, Fu, Xinchu, Gao, Hongjun
core   +3 more sources

Home - About - Disclaimer - Privacy