Results 111 to 120 of about 754,834 (272)
Uniform boundedness of the attractor in H2 of a non-autonomous epidemiological system [PDF]
, 2018 In this paper, we prove the uniform boundedness of the pullback attractor of a non-autonomous SIR (susceptible, infected, recovered) model from epidemiology considered in Anguiano and Kloeden [M. Anguiano, P.E.
Anguiano Moreno, María
core
Journal of Advances in Modeling Earth Systems, Volume 17, Issue 4, April 2025.Abstract Constraining a numerical weather prediction (NWP) model with observations via 4D variational (4D‐Var) Data assimilation (DA) is often difficult to implement due to the need to develop and maintain a software‐based tangent linear model and adjoint model.
Kylen Solvik +2 more
wiley +1 more source
On non-autonomously forced Burgers equation with periodic and Dirichlet boundary conditions
, 2019 We study the non-autonomously forced Burgers equation $$ u_t(x,t) + u(x,t)u_x(x,t) - u_{xx}(x,t) = f(x,t) $$ on the space interval $(0,1)$ with two sets of the boundary conditions: the Dirichlet and periodic ones.
Kalita, Piotr, Zgliczyński, Piotr
core +1 more source
New building blocks for F1${\mathbb {F}}_1$‐geometry: Bands and band schemes
Journal of the London Mathematical Society, Volume 111, Issue 4, April 2025.Abstract We develop and study a generalization of commutative rings called bands, along with the corresponding geometric theory of band schemes. Bands generalize both hyperrings, in the sense of Krasner, and partial fields in the sense of Semple and Whittle.
Matthew Baker +2 more
wiley +1 more source
PAMM, Volume 25, Issue 1, March 2025.Abstract For a problem in chemo‐mechanics, stated as a rate‐type variational principle, a minimization and a saddle point formulation are considered. Both formulations couple mechanical balance equations to mass diffusion and are intended to accurately model the diffusion‐induced swelling of hydrogels.
Akshay Balachandran Jeeja +4 more
wiley +1 more source
Affine Non‐Reductive GIT and moduli of representations of quivers with multiplicities
Journal of the London Mathematical Society, Volume 111, Issue 3, March 2025.Abstract We give an explicit approach to quotienting affine varieties by linear actions of linear algebraic groups with graded unipotent radical, using results from projective Non‐Reductive GIT. Our quotients come with explicit projective completions, whose boundaries we interpret in terms of the original action.
Eloise Hamilton +2 more
wiley +1 more source
Pullback attractors for stochastic heat equations in materials with memory
Discrete and Continuous Dynamical Systems - Series B, 2008 We study the asymptotic behaviour of a non-autonomous stochastic reaction-diffusion equation with memory. In fact, we prove the existence of a random pullback attractor for our stochastic parabolic PDE with memory. The randomness enters in our model as an additive Hilbert valued noise. We first prove that the equation generates a random dynamical
Caraballo Garrido, Tomás +2 more
openaire +2 more sources
Electronic Journal of Differential Equations, 2016 In this article, we prove the existence of pullback attractor in $C([-h,0];H^1(\mathbb{R}^N))$ for a stochastic nonclassical diffusion equations on unbounded domains with non-autonomous deterministic and stochastic forcing terms, and the pullback ...
Fang-Hong Zhang, Wei Han
doaj
Attractors for non-autonomous retarded lattice dynamical systems
Nonautonomous Dynamical Systems, 2015 In this paperwe study a non-autonomous lattice dynamical system with delay. Under rather general growth and dissipative conditions on the nonlinear term,we define a non-autonomous dynamical system and prove the existence of a pullback attractor for such ...
Caraballo Tomás +2 more
doaj +1 more source
Focus point on uncertainty quantification of modeling and simulation in physics and related areas: from theoretical to computational techniques. [PDF]
Eur Phys J Plus, 2023 Cortés JC, Caraballo T, Pinto CMA.
europepmc +1 more source