Results 41 to 50 of about 61,413 (290)

Validation of Coronary Angiography-Derived Vessel Fractional Flow Reserve in Heart Transplant Patients with Suspected Graft Vasculopathy

open access: yesDiagnostics, 2021
Cardiac transplant-related vasculopathy remains a leading cause of morbidity and mortality in heart transplant (HTx) recipients. Recently, coronary angiography-derived vessel fractional flow reserve (vFFR) has emerged as a new diagnostic computational ...
Niya Mileva   +13 more
doaj   +1 more source

Time-dependent attractors for non-autonomous nonlocal reaction-diffusion equations [PDF]

open access: yes, 2018
In this paper, the existence and uniqueness of weak and strong solutions for a non-autonomous nonlocal reaction-diffusion equation is proved. Next, the existence of minimal pullback attractors in the L2 -norm in the frameworks of universes of fixed ...
Caraballo Garrido, Tomás   +2 more
core   +1 more source

Pullback Bundles and the Geometry of Learning

open access: yesEntropy, 2023
Explainable Artificial Intelligence (XAI) and acceptable artificial intelligence are active topics of research in machine learning. For critical applications, being able to prove or at least to ensure with a high probability the correctness of algorithms is of utmost importance. In practice, however, few theoretical tools are known that can be used for
openaire   +4 more sources

Pullback D-Attractor of Coupled Rod Equations with Nonlinear Moving Heat Source

open access: yesJournal of Applied Mathematics, 2014
We consider the pullback D-attractor for the nonautonomous nonlinear equations of thermoelastic coupled rod with a nonlinear moving heat source. By Galerkin method, the existence and uniqueness of global solutions are proved under homogeneous boundary ...
Danxia Wang, Jianwen Zhang, Yinzhu Wang
doaj   +1 more source

Pullback attractors for non-autonomous 2D-Navier-Stokes equations in some unbounded domains [PDF]

open access: yes, 2006
In this Note we first introduce the concept of pullback asymptotic compactness. Next, we establish a result ensuring the existence of a pullback attractor for a non-autonomous dynamical system under the general assumptions of pullback asymptotic ...
Caraballo Garrido, Tomás   +2 more
core   +3 more sources

Pullbacks of Banach Bundles

open access: yesRocky Mountain Journal of Mathematics, 1992
Le résultat principal peut s'énoncer ainsi: \(S\) et \(T\) sont deux espaces compacts, \(\alpha: S\to T\) une application continue, \(\varphi: F\to T\) un fibré de Banach, \(\pi: E\to S\) son obstruction par \(\alpha\), \(K\) l'enveloppe linéaire fermée dans \(C(S)\widehat{\widehat\otimes} \Gamma(\rho)\) de l'ensemble des éléments de la forme \((g\cdot
Kitchen, J.W., Robbins, D.A.
openaire   +2 more sources

Robustness of time-dependent attractors in H1-norm for nonlocal problems [PDF]

open access: yes, 2018
In this paper, the existence of regular pullback attractors as well as their upper semicontinuous behaviour in H1-norm are analysed for a parameterized family of non-autonomous nonlocal reaction-diffusion equations without uniqueness, improving previous ...
Caraballo Garrido, Tomás   +2 more
core   +1 more source

Extensions and Pullbacks in QB-Rings [PDF]

open access: yesAlgebras and Representation Theory, 2005
20 ...
Ara, Pere   +2 more
openaire   +3 more sources

Pullback Attractor for Nonautonomous Primitive Equations of Large-Scale Ocean and Atmosphere Dynamics

open access: yesAbstract and Applied Analysis, 2013
We consider the existence of -pullback attractor for nonautonomous primitive equations of large-scale ocean and atmosphere dynamics in a three-dimensional bounded cylindrical domain by verifying pullback condition.
Kun Li, Fang Li
doaj   +1 more source

Criteria for strong and weak random attractors

open access: yes, 2008
The theory of random attractors has different notions of attraction, amongst them pullback attraction and weak attraction. We investigate necessary and sufficient conditions for the existence of pullback attractors as well as of weak ...
B. Schmalfuß   +19 more
core   +1 more source

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