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We give detailed exposition of modern differential geometry from global coordinate independent point of view as well as local coordinate description suited for actual computations. In introduction, we consider Euclidean spaces and different…

数学物理 · 物理学 2024-01-26 M. O. Katanaev

We formulate a Herglotz-type variational principle on a Lie algebroid and derive the corresponding Euler--Lagrange--Herglotz equations for a Lagrangian depending on an additional scalar variable $z$. This provides a geometric framework for…

数学物理 · 物理学 2025-12-22 Alexandre Anahory Simoes , Leonardo Colombo

The complex morphologies exhibited by spatially confined thin objects have long challenged human efforts to understand and manipulate them, from the representation of patterns in draped fabric in Renaissance art to current day efforts to…

软凝聚态物质 · 物理学 2019-01-08 Benny Davidovitch , Yiwei Sun , Gregory M. Grason

Hartle's generalized quantum mechanics in the sum-over-histories formalism is used to describe a nonabelian gauge theory. Predictions are made for certain alternatives, with particular attention given to coarse-grainings involving the…

高能物理 - 理论 · 物理学 2016-08-24 John T. Whelan

For a manifold embedded in an inner product space, we express geometric quantities such as {\it Hamilton vector fields, affine and Levi-Civita connections, curvature} in global coordinates. Instead of coordinate indices, the global formulas…

微分几何 · 数学 2023-07-20 Du Nguyen

This paper provides global formulations of Lagrangian and Hamiltonian variational dynamics evolving on the product of an arbitrary number of two-spheres. Four types of Euler-Lagrange equations and Hamilton's equations are developed in a…

动力系统 · 数学 2015-03-10 Taeyoung Lee , Melvin Leok , N. Harris McClamroch

A new approach to relativistic mechanics is proposed, suitable to describe dynamics of different kinds of relativistic particles. Mathematically it is based on an application of the recent geometric theory of nonholonomic systems on fibred…

数学物理 · 物理学 2009-04-21 Olga Krupkova , Jana Musilova

In this study, Hamiltonian and Lagrangian theories, which are mathematical models of mechanical systems, are structured on the horizontal and the vertical distributions of tangent and cotangent bundles. In the end, the geometrical and…

动力系统 · 数学 2009-03-03 Mehmet Tekkoyun

Three geometric formulations of the Hamiltonian structure of the macroscopic Maxwell equations are given: one in terms of the double de Rham complex, one in terms of L2 duality, and one utilizing an abstract notion of duality. The final of…

数学物理 · 物理学 2023-05-01 William Barham , Philip J. Morrison , Eric Sonnendrücker

Motivated by research on contraction analysis and incremental stability/stabilizability the study of 'differential properties' has attracted increasing attention lately. Previously lifts of functions and vector fields to the tangent bundle…

最优化与控制 · 数学 2015-04-10 Arjan van der Schaft

The aim of this paper is to show that the Lagrange-d'Alembert and its equivalent the Gauss and Appel principle are not the only way to deduce the equations of motion of the nonholonomic systems. Instead of them, here we consider the…

数学物理 · 物理学 2014-02-25 J. Llibre , R. Ramírez , N. Sadovskaia

We discuss the Hu-Washizu (HW) variational principle from a geometric standpoint. The mainstay of the present approach is to treat quantities defined on the co-tangent bundles of reference and deformed configurations as primal. Such a…

数学物理 · 物理学 2020-09-02 Bensingh Dhas , Debasish Roy

Invariant Lagrangians yield invariant Euler-Lagrange equations, and it was discussed in the literature how to compute those using various local methods. The focus of this paper is on global algebraic differential invariants. In this case…

微分几何 · 数学 2026-01-13 Boris Kruglikov , Eivind Schneider , Wijnand Steneker

It is proposed how to impose a general type of ''noncommutativity'' within classical mechanics from first principles. Formulation is performed in completely alternative way, i.e. without any resort to fuzzy and/or star product philosophy,…

高能物理 - 理论 · 物理学 2008-12-19 Denis Kochan

We elaborate an unified geometric approach to classical mechanics, Riemann-Finsler spaces and gravity theories on Lie algebroids provided with nonlinear connection (N-connection) structure. There are investigated the conditions when the…

数学物理 · 物理学 2012-08-10 Sergiu I. Vacaru

A geometric approach to integrability and reduction of dynamical system is developed from a modern perspective. The main ingredients in such analysis are the infinitesimal symmetries and the tensor fields that are invariant under the given…

数学物理 · 物理学 2022-03-28 José F. Cariñena

After a brief survey of the definition and the properties of Lambda-symmetries in the general context of dynamical systems, the notion of "Lambda-constant of motion'' for Hamiltonian equations is introduced. If the Hamiltonian problem is…

数学物理 · 物理学 2011-02-17 Giampaolo Cicogna

This paper presents a geometric description on Lie algebroids of Lagrangian systems subject to nonholonomic constraints. The Lie algebroid framework provides a natural generalization of classical tangent bundle geometry. We define the…

数学物理 · 物理学 2008-04-30 J. Cortes , M. de Leon , J. C. Marrero , E. Martinez

This series of papers is devoted to an open-ended project aimed at the solution of Hilbert's sixth problem (concerning joint axiomatization of physics and probability theory) proposed to be constructed in the framework of an all-embracing…

数学物理 · 物理学 2010-12-13 Tulsi Dass

In this paper we review a proposed geometrical formulation of quantum mechanics. We argue that this geometrization makes available mathematical methods from classical mechanics to the quantum frame work. We apply this formulation to the…

数学物理 · 物理学 2014-11-21 G. Marmo , G. F. Volkert