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In this article we extend the modern, powerful and simple abstract Hilbert space strategy for proving hypocoercivity that has been developed originally by Dolbeault, Mouhot and Schmeiser. As well-known, hypocoercivity methods imply an…

泛函分析 · 数学 2015-12-31 Martin Grothaus , Patrik Stilgenbauer

In this paper, time-independent Hamiltonian systems are investigated via a Lie-group/algebra formalism. The (unknown) solution linked with the Hamiltonian is considered to be a Lie-group transformation of the initial data, where the group…

数学物理 · 物理学 2020-08-10 Sébastien Bertrand

In theoretical ecology, models describing the spatial dispersal and the temporal evolution of species having non-overlapping generations are often based on integrodifference equations. For various such applications the environment has an…

动力系统 · 数学 2022-05-12 Huy Huy , Peter E. Kloeden , Christian Pötzsche

Contraction analysis establishes exponential incremental convergence of a nonlinear system by solving a linear matrix inequality for a contraction metric, and has become a standard resource for solving problems in nonlinear control and…

动力系统 · 数学 2026-03-03 Winfried Lohmiller , Jean-Jacques Slotine

Using the conformal invariance the leading-log evolution of the off-forward structure function is reduced to the forward evolution described by the conventional DGLAP equation. The method relies on the fact that the anomalous dimensions of…

高能物理 - 唯象学 · 物理学 2014-11-17 A. Shuvaev

In this paper, we consider an autonomous semi-dynamical system driven by semilinear time-nonlocal evolution equations, these type equations are used to describe the Rayleigh-Stokes problem for a non-Newtonain fluid to a generalized second…

动力系统 · 数学 2026-05-20 Li Peng , Lin Deng , Jia Wei He

The concepts of hypocoercivity and hypocontractivity and their relationship are studied for semi-dissipative continuous-time and discrete-time evolution equations in a Hilbert space setting. New proofs for the characterization of the…

动力系统 · 数学 2026-01-15 Anton Arnold , Stefan Egger , Volker Mehrmann , Eduard A. Nigsch

The decay of a general time dependent structure factors is considered. The dynamics is that of stochastic field equations of the Langevin type, where the systematic generalized force is a functional derivative of some classical field…

统计力学 · 物理学 2007-05-23 Moshe Schwartz

In this note, we characterize the solution of a system of elliptic integro-differential equations describing a phe-notypically structured population subject to mutation, selection and migration. Generalizing an approach based on…

偏微分方程分析 · 数学 2018-05-25 Sepideh Mirrahimi , Sylvain Gandon

We first discuss the geometrical construction and the main mathematical features of the maximum-entropy-production/steepest-entropy-ascent nonlinear evolution equation proposed long ago by this author in the framework of a fully quantum…

量子物理 · 物理学 2015-05-13 Gian Paolo Beretta

This work is concerned with the gradient flow of absolutely $p$-homogeneous convex functionals on a Hilbert space, which we show to exhibit finite ($p<2$) or infinite extinction time ($p \geq 2$). We give upper bounds for the finite…

偏微分方程分析 · 数学 2020-12-25 Leon Bungert , Martin Burger

The continuous dependence of solutions to certain (non-autonomous, partial, integro-differential-algebraic, evolutionary) equations on the coefficients is addressed. We give criteria that guarantee that convergence of the coefficients in…

泛函分析 · 数学 2016-01-21 Marcus Waurick

When we are interested in the long-term behaviour of solutions to linear evolution equations, a large variety of techniques from the theory of $C_0$-semigroups is at our disposal. However, if we consider for instance parabolic equations…

偏微分方程分析 · 数学 2020-11-25 Alexander Dobrick , Jochen Glück

We study abstract linear and nonlinear evolutionary systems with single or multiple delay feedbacks, illustrated by several concrete examples. In particular, we assume that the operator associated with the undelayed part of the system…

偏微分方程分析 · 数学 2019-02-21 Vilmos Komornik , Cristina Pignotti

We study the question of existence of positive steady states of nonlinear evolution equations. We recast the steady state equation in the form of eigenvalue problems for a parametrised family of unbounded linear operators, which are…

偏微分方程分析 · 数学 2019-03-25 Àngel Calsina , József Z. Farkas

We introduce a special class of real semiflows, which is used to define a general type of evolution semigroups, associated to not necessarily exponentially bounded evolution families. Giving spectral characterizations of the corresponding…

经典分析与常微分方程 · 数学 2023-03-29 Nicolae Lupa , Liviu Horia Popescu

The paper extends well-posedness results of a previously explored class of time-shift invariant evolutionary problems to the case of non-autonomous media. The Hilbert space setting developed for the time-shift invariant case can be utilized…

偏微分方程分析 · 数学 2013-02-07 Rainer Picard , Sascha Trostorff , Marcus Waurick , Maria Wehowski

The present study gives a mathematical framework for self-evolution within autonomous problem solving systems. Special attention is set on universal abstraction, thereof generation by net block homomorphism, consequently multiple order…

人工智能 · 计算机科学 2013-08-27 Seppo Ilari Tirri

The paper is devoted to the problem of existence of propagators for an abstract linear non-autonomous evolution Cauchy problem of hyperbolic type in separable Banach spaces. The problem is solved using the so-called evolution semigroup…

数学物理 · 物理学 2007-11-05 Hagen Neidhardt , Valentin A. Zagrebnov

We consider a class of evolution equations in Lindblad form, which model the dynamics of dissipative quantum mechanical systems with mean-field interaction. Particularly, this class includes the so-called Quantum Fokker-Planck-Poisson…

数学物理 · 物理学 2009-11-10 Anton Arnold , Christof Sparber