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In this article, we focus on the analysis of discrete versions of the Calderon problem in dimension d \geq 3. In particular, our goal is to obtain stability estimates for the discrete Calderon problems that hold uniformly with respect to…

数值分析 · 数学 2015-05-28 S. Ervedoza , F. de Gournay

Accurate simulations of ice sheet dynamics, mantle convection, lava flow, and other highly viscous free-surface flows involve solving the coupled Stokes/free-surface equations. In this paper, we theoretically analyze the stability and…

数值分析 · 数学 2025-06-13 Igor Tominec , Lukas Lundgren , André Löfgren , Josefin Ahlkrona

In this paper we consider various splitting schemes for unsteady problems containing the grad-div operator. The fully implicit discretization of such problems would yield at each time step a linear problem that couples all components of the…

数值分析 · 计算机科学 2016-11-18 Peter Minev , Petr N. Vabishchevich

We prove the orbital stability of periodic traveling-wave solutions for systems of dispersive equations with coupled nonlinear terms. Our method is basically developed under two assumptions: one concerning the spectrum of the linearized…

偏微分方程分析 · 数学 2020-02-13 Fabrício Cristófani , Ademir Pastor

In this paper, we study the L2 stability of high-order finite-volume schemes for the 1D transport equation on non-uniform meshes. We consider the case when a small periodic perturbation is applied to a uniform mesh. For this case, we…

数值分析 · 数学 2024-08-30 Pavel Bakhvalov , Mikhail Surnachev

We show that continuous bounded group cohomology stabilizes along the sequences of real or complex symplectic Lie groups, and deduce that bounded group cohomology stabilizes along sequences of lattices in them, such as…

群论 · 数学 2019-02-05 Carlos De la Cruz Mengual , Tobias Hartnick

We consider the motion described by the Navier-Stokes equations in a box with periodic boundary conditions. First we prove the existence of global strong two-dimensional solutions. Next we show the existence of global strong…

偏微分方程分析 · 数学 2014-06-04 Wojciech Zajączkowski , Ewa Zadrzyńska

In this paper, we reconsider the well-known result of Pego-Weinstein \cite{MR1289328} that soliton solutions to the Korteweg-deVries equation are asymptotically stable in exponentially weighted spaces. In this work, we recreate this result…

偏微分方程分析 · 数学 2014-10-28 Brian Pigott , Sarah Raynor

This paper discusses differential stability of convex programming problems in Hausdorff locally convex topological vector spaces. Among other things, we obtain formulas for computing or estimating the subdifferential and the singular…

最优化与控制 · 数学 2018-05-08 Duong Thi Viet An , Nguyen Dong Yen

We present a new approach to the problem of proving global stability, based on symplectic geometry and with a focus on systems with several conserved quantities. We also provide a proof of instability for integrable systems whose momentum…

数学物理 · 物理学 2025-10-28 Verónica Errasti Díez , Jordi Gaset Rifà , Manuel Lainz

This article is a sequel to [M.Z.Z.1] aimed at completing the characterization of the pathwise local structure of solutions of semilinear stochastic evolution equations (see's) and stochastic partial differential equations (spde's) near…

概率论 · 数学 2008-09-19 Salah-Eldin A. Mohammed , Tusheng Zhang , Huaizhong Zhao

We study the asymptotics of strongly continuous operator semigroups defined on locally convex spaces in order to develop a stability theory for solutions of evolution equations beyond Banach spaces. In the classical case, there is only…

偏微分方程分析 · 数学 2016-03-03 Birgit Jacob , Sven-Ake Wegner

We study the spatial-homogeneity of stable solutions of almost-periodic parabolic equations. It is shown that if the nonlinearity satisfies a concave or convex condition, then any linearly stable almost automorphic solution is…

动力系统 · 数学 2018-04-24 Yi Wang , Jianwei Xiao , Dun Zhou

For the 5-components Maxwell-Bloch system the stability problem for the isolated equilibria is completely solved. Using the geometry of the symplectic leaves, a detailed construction of the homoclinic orbits is given. Studying the problem…

动力系统 · 数学 2013-04-16 Petre Birtea , Ioan Casu

We investigate the stability of the wave equation with spatial dependent coefficients on a bounded multidimensional domain. The system is stabilized via a scattering passive feedback law. We formulate the wave equation in a port-Hamiltonian…

泛函分析 · 数学 2022-02-18 Birgit Jacob , Nathanael Skrepek

In this paper we establish the orbital stability of periodic waves related to the logarithmic Korteweg-de Vries equation. Our motivation is inspired in the recent work \cite{carles}, in which the authors established the well-posedness and…

偏微分方程分析 · 数学 2015-10-23 Fábio Natali , Ademir Pastor , Fabrício Cristófani

In this paper, the successive approximation method is applied to investigate the existence and uniqueness of solutions to the stochastic differential equations (SDEs) driven by L\'evy noise under non-Lipschitz condition which is a much…

动力系统 · 数学 2014-05-15 Y Xu , B Pei

We establish existence and stabilty results for solitons in noncommutative scalar field theories in even space dimension $2d$. In particular, for any finite rank spectral projection $P$ of the number operator ${\mathcal N}$ of the…

高能物理 - 理论 · 物理学 2009-11-07 Bergfinnur Durhuus , Thordur Jonsson , Ryszard Nest

For given non-consistent initial conditions, we study the stability of a class of generalised linear systems of difference equations with constant coefficients and taking into account that the leading coefficient can be a singular matrix.…

动力系统 · 数学 2016-12-14 Nicholas Apostolopoulos , Fernando Ortega , Grigoris Kalogeropoulos

The main objective of this work is to characterize the pathwise local structure of solutions of semilinear stochastic evolution equations (see's) and stochastic partial differential equations (spde's) near stationary solutions. Such…

概率论 · 数学 2008-09-19 Salah-Eldin A Mohammed , Tusheng Zhang , Huaizhong Zhao