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We analyze a phase-field system where the energy balance equation is linearly coupled with a nonlinear and nonlocal ODE for the order parameter $\chi$. The latter equation is characterized by a space convolution term which models particle…

Dynamical Systems · Mathematics 2011-08-02 Maurizio Grasselli

We prove the existence of the global attractor in $ \dot H^s$, $s > 11/12$ for the weakly damped and forced mKdV on the one dimensional torus. The existence of global attractor below the energy space has not been known, though the global…

Analysis of PDEs · Mathematics 2019-05-06 Prashant Goyal

Let $X$ be a separable metrizable space. We establish a criteria for the existence of a metrizable globalization for a given continuous partial action of a separable metrizable group $G$ on $X.$ If $G$ and $X$ are Polish spaces, we show…

Logic · Mathematics 2016-12-06 Hector Pinedo , Carlos Uzcategui

Global dynamics of the diffusive Hindmarsh-Rose equations with memristor as a new proposed model for neuron dynamics are investigated in this paper. We prove the existence and regularity of a global attractor for the solution semiflow…

Analysis of PDEs · Mathematics 2022-08-23 Yuncheng You

The global attractor conjecture says that toric dynamical systems (i.e., a class of polynomial dynamical systems on the positive orthant) have a globally attracting point within each positive linear invariant subspace -- or, equivalently,…

Dynamical Systems · Mathematics 2016-01-12 Gheorghe Craciun

This paper is concerned with a formation shaping problem for point agents in a two-dimensional space, where control avoids the possibility of reflection ambiguities. One solution for this type of problems was given first for three or four…

Systems and Control · Electrical Eng. & Systems 2020-09-08 Toshiharu Sugie , Fei Tong , Brian D. O. Anderson , Zhiyong Sun

Quantum dynamical semigroups play an important role in the description of physical processes such as diffusion, radiative decay or other non-equilibrium events. Taking strongly continuous and trace preserving semigroups into consideration,…

Mathematical Physics · Physics 2015-09-07 Sabina Alazzawi , Bernhard Baumgartner

This paper is concerned with the existence and regularity of global attractor $\mathcal A$ for a Kirchhoff wave equation with strong damping and memory in the weighted time-dependent spaces $\mathcal H$ and $\mathcal H^{1}$, respectively.…

Analysis of PDEs · Mathematics 2023-03-28 Bin Yang , Yuming Qin , Alain Miranville , Ke Wang

In this paper we introduce the concept of corner element of a generalized numerical semigroup, which extends in a sense the idea of conductor of a numerical semigroup to generalized numerical semigroups in higher dimensions. We present…

Group Theory · Mathematics 2022-01-19 Matheus Bernardini , Wanderson Tenório , Guilherme Tizziotti

In this paper we show the lower semicontinuity of the global attractors of autonomous thermoelastic plate systems with Neumann boundary conditions when some reaction terms are concentrated in a neighborhood of the boundary and this…

Dynamical Systems · Mathematics 2019-12-13 Gleiciane S. Aragão , Flank D. M. Bezerra , Cládio O. P. Da Silva

Conditions are given which imply that certain non-autonomous analytic iterated function systems (NIFS's) in the complex plane C have uniformly perfect attractor sets. Examples are given to illustrate the main theorem, as well as to indicate…

Complex Variables · Mathematics 2021-01-28 Kurt Falk , Rich Stankewitz

We study the asymptotic properties of the semigroup S(t) arising from a nonlinear viscoelastic equation with hereditary memory on a bounded three-dimensional domain written in the past history framework of Dafermos. We establish the…

Analysis of PDEs · Mathematics 2013-09-19 Monica Conti , Elsa M. Marchini , Vittorino Pata

The notion of geometric version of an infinitely divisible law is introduced. Concepts parallel to attraction and partial attraction are developed and studied in the setup of geometric summing of random variables.

Probability · Mathematics 2014-09-16 E. Sandhya , R. N. Pillai

In the scalar-tensor theory of gravitation it seems nontrivial to establish if solutions of the cosmological equations in the presence of a cosmological constant behave as attractors independently of the initial values. We develop a general…

High Energy Physics - Theory · Physics 2009-11-06 Kei-ichi Maeda , Yasunori Fujii

In this paper, we investigate the continuity of the attractors in time-dependent phase spaces. (i) We establish two abstract criteria on the upper semicontinuity and the residual continuity of the pullback $\mathscr D$-attractor with…

Analysis of PDEs · Mathematics 2022-01-11 Yanan Li , Zhijian Yang

The aim of this paper is to describe the structure of global attractors for non-autonomous difference systems of equations with recurrent (in particular, almost periodic) coefficients. We consider a special class of this type of systems…

Dynamical Systems · Mathematics 2011-04-29 Tomás Caraballo , David Cheban

An induced additive action on a projective variety $X \subseteq \mathbb{P}^n$ is a regular action of the group $\mathbb{G}_a^m$ on $X$ with an open orbit, which can be extended to a regular action on the ambient projective space…

Algebraic Geometry · Mathematics 2025-08-05 Viktoriia Borovik , Alexander Chernov , Anton Shafarevich

The Cahn-Hilliard-Navier-Stokes system is based on a well-known diffuse interface model and describes the evolution of an incompressible isothermal mixture of binary fluids. A nonlocal variant consists of the Navier-Stokes equations…

Analysis of PDEs · Mathematics 2015-05-30 Sergio Frigeri , Maurizio Grasselli

In the article, we aim to investigate the well-posedness of solution and the regularity of the global attractor for the couple stress fluid in saturated porous media with the local thermal non-equilibrium effect. To be more specific, we…

Analysis of PDEs · Mathematics 2021-10-13 Liang Li , Lan Jia

We provide new $\infty$-categorical models for unstable and stable global homotopy theory. We use the notion of partially lax limits to formalize the idea that a global object is a collection of $G$-objects, one for each compact Lie group…

Algebraic Topology · Mathematics 2025-06-17 Sil Linskens , Denis Nardin , Luca Pol