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相关论文: Likely equilibria of the stochastic Rivlin cube

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The inherent complexity of biological agents often leads to motility behavior that appears to have random components. Robust stochastic inference methods are therefore required to understand and predict the motion patterns from time…

软凝聚态物质 · 物理学 2024-11-14 Jan Albrecht , Manfred Opper , Robert Großmann

We propose a new algorithm for the solution of the robust multiple-load topology optimization problem. The algorithm can be applied to any type of problem, e.g., truss topology, variable thickness sheet or free material optimization. We…

最优化与控制 · 数学 2013-07-30 Michal Kocvara

We prove regularity and stochastic homogenization results for certain degenerate elliptic equations in nondivergence form. The equation is required to be strictly elliptic, but the ellipticity may oscillate on the microscopic scale and is…

偏微分方程分析 · 数学 2014-10-29 Scott N. Armstrong , Charles K. Smart

Using the information current, we develop a Lorentz-covariant framework for modeling equilibrium fluctuations in relativistic kinetic theory in the grand-canonical ensemble. The resulting stochastic theory is proven to be causal and…

核理论 · 物理学 2024-07-24 Gabriel Soares Rocha , Lorenzo Gavassino , Nicki Mullins

A manifestly covariant relativistic statistical mechanics of the system of $N$ indistinguishable events with motion in space-time parametrized by an invariant ``historical time'' $\tau $ is considered. The relativistic mass distribution for…

高能物理 - 唯象学 · 物理学 2015-06-25 L. Burakovsky , L. P. Horwitz

Viscoelastic fluids are a common subclass of rheologically complex materials that are encountered in diverse fields from biology to polymer processing. Often the flows of viscoelastic fluids are unstable in situations where ordinary…

This paper is concerned with robust instability analysis for linear multi-agent dynamical systems with cyclic structure. This relates to interesting and important periodic oscillation phenomena in biology and neuronal science, since the…

系统与控制 · 电气工程与系统科学 2021-01-28 Shinji Hara , Tetsuya Iwasaki , Yutaka Hori

We introduce a family of stochastic models motivated by the study of nonequilibrium steady states of fluid equations. These models decompose the deterministic dynamics of interest into fundamental building blocks, i.e., minimal vector…

概率论 · 数学 2025-05-07 Andrea Agazzi , Jonathan C. Mattingly , Omar Melikechi

Modelling is an essential procedure in analyzing and controlling a given logical dynamic system (LDS). It has been proved that deterministic LDS can be modeled as a linear-like system using algebraic state space representation. However, due…

最优化与控制 · 数学 2022-03-04 Changxi Li , Jun-e Feng , Daizhan Cheng , Xiao Zhang

In recent years, many difficulties appeared when taking into account the inherent stochastic behavior of neurons and voltage-dependent ion channels in Hodgking-Huxley type models. In particular, an open problem for a stochastic model of…

动力系统 · 数学 2012-09-21 Jacky Cresson , Bénédicte Puig , Stefanie Sonner

In this paper we consider a mathematical model which describes the equilibrium of two elastic rods attached to a nonlinear spring. We derive the variational formulation of the model which is in the form of an elliptic quasivariational…

数值分析 · 数学 2023-09-11 Anna Ochal , Wiktor Prządka , Mircea Sofonea , Domingo A. Tarzia

A parameter estimation problem for a class of semilinear stochastic evolution equations is considered. Conditions for consistency and asymptotic normality are given in terms of growth and continuity properties of the nonlinear part.…

统计理论 · 数学 2020-02-26 Gregor Pasemann , Wilhelm Stannat

This article is concerned with stability analysis and stabilization of randomly switched nonlinear systems. These systems may be regarded as piecewise deterministic stochastic systems: the discrete switches are triggered by a stochastic…

最优化与控制 · 数学 2010-09-08 Debasish Chatterjee , Daniel Liberzon

The article studies the reiterated homogenization of linear elliptic variational inequalities arising in problems with unilateral constrains. We assume that the coefficients of the equations satisfy and abstract hypothesis covering on each…

数学物理 · 物理学 2018-11-16 Hermann Douanla , Cyrille Kenne

We explore a stochastic model that enables capturing external influences in two specific ways. The model allows for the expression of uncertainty in the parametrisation of the stochastic dynamics and incorporates patterns to account for…

证券定价 · 定量金融 2024-04-11 Felix L. Wolf , Griselda Deelstra , Lech A. Grzelak

Stochastic perturbations (radial) of a spherically symmetric relativistic star, modeled by a perfect fluid in comoving coordinates for the collapse scenario are worked out using the classical Einstein- Langevin equation, which has been…

广义相对论与量子宇宙学 · 物理学 2019-04-09 Seema Satin

We unify and extend the semigroup and the PDE approaches to stochastic maximal regularity of time-dependent semilinear parabolic problems with noise given by a cylindrical Brownian motion. We treat random coefficients that are only…

偏微分方程分析 · 数学 2019-02-12 Pierre Portal , Mark Veraar

This paper considers a Popov type approach to the problem of robust stability for a class of uncertain linear quantum systems subject to unknown perturbations in the system Hamiltonian. A general stability result is given for a general…

量子物理 · 物理学 2013-03-08 Matthew R. James , Ian R. Petersen , Valery Ugrinovskii

We examine the equilibrium and stability of an elastocapillary system to model drying-induced structural failures. The model comprises a circular elastic membrane with a hole at the center that is deformed by the capillary pressure of…

软凝聚态物质 · 物理学 2015-05-28 Amir Akbari , Reghan J. Hill , Theo G. M. van de Ven

In this article, we discuss about the resolution of the Riemann problem for a 2x2 system in nonconservative form exhibiting parabolic degeneracy. The system can be perceived as the limiting equation (depending on a parameter tending to 0)…

偏微分方程分析 · 数学 2014-01-06 Anupam Pal Choudhury