Results 61 to 70 of about 2,525 (234)
Random attractors for stochastic evolution equations driven by fractional Brownian motion [PDF]
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
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
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
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]
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]
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]
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
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]
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
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Song, Haitao, Wu, Hongqing
openaire +2 more sources

