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This paper studies hamiltonization of nonholonomic systems using geometric tools. By making use of symmetries and suitable first integrals of the system, we explicitly define a global 2-form for which the gauge transformed nonholonomic…

数学物理 · 物理学 2019-04-02 Paula Balseiro , Luis P. Yapu

In this paper, we propose a first second-order scheme based on arbitrary non-Euclidean norms, incorporated by Bregman distances. They are introduced directly in the Newton iterate with regularization parameter proportional to the square…

最优化与控制 · 数学 2021-12-07 Nikita Doikov , Yurii Nesterov

This paper pursues a twofold goal. First, we introduce and study in detail a new notion of variational analysis called generalized metric subregularity, which is a far-going extension of the conventional metric subregularity conditions. Our…

最优化与控制 · 数学 2024-06-21 Guoyin Li , Boris Mordukhovich , Jiangxing Zhu

We prove the Fredholm alternative for a class of two-dimensional first-order hyperbolic systems with periodic-Dirichlet boundary conditions. Our approach is based on a regularization via a right parametrix.

偏微分方程分析 · 数学 2025-12-10 Irina Kmit

We investigate the finite time stability property of one-dimensional nonautonomous initial boundary value problems for linear decoupled hyperbolic systems with nonlinear boundary conditions. We establish sufficient and necessary conditions…

偏微分方程分析 · 数学 2025-12-10 Irina Kmit

Dimensional regularization of Euclidean momentum space integrals is a highly successful technique in renormalization of quantum field theories. While it yields a straightforward algorithmic method, with which to evaluate diagrams beyond…

数学物理 · 物理学 2020-09-03 Juuso Österman

We show that, near periodic orbits, a class of hybrid models can be reduced to or approximated by smooth continuous-time dynamical systems. Specifically, near an exponentially stable periodic orbit undergoing isolated transitions in a…

动力系统 · 数学 2015-01-09 Samuel A. Burden , Shai Revzen , S. Shankar Sastry

We extend the Kreiss--Majda theory of stability of hyperbolic initial--boundary-value and shock problems to a class of systems, notably including the equations of magnetohydrodynamics (MHD), for which Majda's block structure condition does…

偏微分方程分析 · 数学 2007-05-23 Guy Métivier , Kevin Zumbrun

The paper addresses linear hyperbolic systems in one space dimension with random field coefficients. In many applications, a low degree of regularity of the paths of the coefficients is required, which is not covered by classical stochastic…

概率论 · 数学 2024-09-26 Jelena Karakašević , Michael Oberguggenberger , Martin Schwarz

For hyperbolic first-order systems of linear partial differential equations (master equations), appearing in description of kinetic processes in physics, biology and chemistry we propose a new procedure to obtain their complete closed-form…

偏微分方程分析 · 数学 2007-05-23 E. I. Ganzha , V. M. Loginov , S. P. Tsarev

In this article, we consider the Ericksen-Leslie's hyperbolic system for compressible liquid crystal model in three spatial dimensions. Global regularity for small and smooth initial data near equilibrium is proved for the case that the…

偏微分方程分析 · 数学 2023-06-13 Jiaxi Huang , Ning Jiang , Yi-Long Luo , Lifeng Zhao

The paper provides results for a non-standard, hyperbolic, 1-D, nonlinear traffic flow model on a bounded domain. The model consists of two first-order PDEs with a dynamic boundary condition that involves the time derivative of the…

最优化与控制 · 数学 2017-07-10 Iasson Karafyllis , Nikolaos Bekiaris-Liberis , Markos Papageorgiou

We revisit a method introduced by Tartar for proving global well-posedness of a semilinear hyperbolic system with null quadratic source in one space dimension. A remarkable point is that, since no dispersion effect is available for 1D…

偏微分方程分析 · 数学 2020-01-22 Roberta Bianchini , Gigliola Staffilani

Employing two distinct types of regularization terms, we propose two regularized extragradient methods for solving equilibrium problems on Hadamard manifolds. The sequences generated by these extragradient algorithms converge to a solution…

最优化与控制 · 数学 2026-01-06 Shikher Sharmaa , Pankaj Gautam , Simeon Reich

The Generalized Riemann Problems (GRP) for nonlinear hyperbolic systems of balance laws in one space dimension are now well-known and can be formulated as follows: Given initial-data which are smooth on two sides of a discontinuity,…

数值分析 · 数学 2013-03-13 Jianzhen Qian , Jiequan Li , Shuanghu Wang

This work presents the first numerical investigation of using Voigt regularization as a method for obtaining magnetohydrodynamic (MHD) equilibria without the assumption of nested magnetic flux surfaces. Voigt regularization modifies the MHD…

等离子体物理 · 物理学 2025-06-16 Yi-Min Huang , Justin Kin Jun Hew , Andrew Brown , Amitava Bhattacharjee

This paper solves the global conormal regularity problem for the three-dimensional incompressible MHD equations with slip boundary condition near a background magnetic field. Motivated by applications in geophysics, the MHD system…

偏微分方程分析 · 数学 2025-07-01 Jincheng Gao , Jiahong Wu , Zheng-an Yao , Xuan Yin

We derive a differential equation that is regular at the collision of two equal-mass bodies with attractive interaction in the relativistic action-at-a-distance electrodynamics. Our method uses the energy constant related to the…

混沌动力学 · 物理学 2007-05-23 Efrain Buksman , Jayme De Luca

Although it is relatively easy to apply, the gradient method often displays a disappointingly slow rate of convergence. Its convergence is specially based on the structure of the matrix of the algebraic linear system, and on the choice of…

数值分析 · 数学 2025-06-03 Ibrahima Dione

In this article we are interested in the boundary stabilization in finite time of one-dimensional linear hyperbolic balance laws with coefficients depending on time and space. We extend the so called "backstepping method" by introducing…

最优化与控制 · 数学 2020-11-30 Jean-Michel Coron , Long Hu , Guillaume Olive , Peipei Shang