Results 61 to 70 of about 2,525 (234)

Random attractors for stochastic evolution equations driven by fractional Brownian motion [PDF]

open access: yes, 2013
The main goal of this article is to prove the existence of a random attractor for a stochastic evolution equation driven by a fractional Brownian motion with $H\in (1/2,1)$.
Gao, H.   +2 more
core   +2 more sources

Financialization of Commodity Markets Co‐Movement Behind‐the‐Scenes

open access: yesJournal of Futures Markets, Volume 45, Issue 12, Page 2457-2475, December 2025.
ABSTRACT In the early 2000s, institutional investors entered the commodity futures markets en masse with passive, long only, index‐type positions in sharp contrast with those typically assumed by traditional expert participants. A heated public debate soon erupted over the perceived consequences of the phenomenon—commonly referred to as ...
Devraj Basu, Olivier Bauthéac
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

A Comparative Study of a Backward Euler and Exponential Update for a Viscoelastic Maxwell Model Within the Material Point Method

open access: yesPAMM, Volume 25, Issue 4, December 2025.
ABSTRACT The material point method (MPM) offers a distinct simulation method compared to conventional techniques such as the finite element method (FEM). In the MPM, physical bodies are represented by a collection of material points while the governing equations are solved on an independent computational mesh. Each simulation step follows a three‐stage
Marvin Koßler   +2 more
wiley   +1 more source

H2-boundedness of the pullback attractor for a non-nutonomous reaction-diffusion equation [PDF]

open access: yes, 2010
We prove some regularity results for the pullback attractor of a reaction-diffusion model. First we establish a general result about H2-boundedness of invariant sets for an evolution process.
Anguiano Moreno, María   +2 more
core  

Pullback attractors for asymptotically compact non-autonomous dynamical systems [PDF]

open access: yes, 2006
First, we introduce the concept of pullback asymptotically compact non-autonomous dynamical system as an extension of the similar concept in the autonomous framework.
Caraballo Garrido, Tomás   +2 more
core   +1 more source

PULLBACK AND FORWARD ATTRACTORS FOR A DAMPED WAVE EQUATION WITH DELAYS [PDF]

open access: yesStochastics and Dynamics, 2004
The existence of a pullback (and also a uniform forward) attractor is proved for a damped wave equation containing a delay forcing term which, in particular, covers the models of sine–Gordon type. The result follows from the existence of a compact set which is uniformly attracting for the two-parameter semigroup associated to the model.
Caraballo Garrido, Tomás   +2 more
openaire   +4 more sources

Boundary representations of locally compact hyperbolic groups

open access: yesProceedings of the London Mathematical Society, Volume 131, Issue 6, December 2025.
Abstract We develop the theory of Patterson–Sullivan measures for locally compact hyperbolic groups. This theory associates to certain left‐invariant metrics on the group measures on its boundary. Next, we establish irreducibility of the resulting (unitary) Koopman representations for second countable, nonelementary, unimodular locally compact ...
Michael Glasner
wiley   +1 more source

An exponential growth condition in H^2 for the pullback attractor of a non-autonomous reaction-diffusion equation [PDF]

open access: yes, 2001
Some exponential growth results for the pullback attractor of a reaction-diffusion when time goes to ¡1 are proved in this paper. First, a general result about Lp\H1 0 exponential growth is established.
Anguiano Moreno, María   +2 more
core  

Pullback attractors of nonautonomous reaction–diffusion equations

open access: yesJournal of Mathematical Analysis and Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Song, Haitao, Wu, Hongqing
openaire   +2 more sources

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