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相关论文: Mannheim Partner D-Curves in Minkowski 3-space

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We formulate an isoperimetric deformation of curves on the Minkowski plane, which is governed by the defocusing mKdV equation. Two classes of exact solutions to the defocusing mKdV equation are also presented in terms of the $\tau$…

In this paper, we introduce the pseudo-torsion functions along spacelike curves whose curvature vector field has isolated lightlike points in Lorentz-Minkowski 3-space, and prove the fundamental theorem. Moreover, we analyze the behavior of…

微分几何 · 数学 2020-03-03 Atsufumi Honda

In this paper, we continue the study of the Killing symmetries of a N-dimensional generalized Minkowski space, i.e. a space endowed with a (in general non-diagonal) metric tensor, whose coefficients do depend on a set of non-metrical…

高能物理 - 理论 · 物理学 2015-06-26 Fabio Cardone , Alessio Marrani , Roberto Mignani

A general definition of the curves and geodesics associated with a given connection on a quantized manifold is given. In the particular case of the functional quantization we define geodesics in the same way as in the classical case and we…

高能物理 - 理论 · 物理学 2007-05-23 V. Milani , A. Shafei Deh Abad

We discuss some aspects of the differential geometry of curves in Minkowski space. We establish the Serret-Frenet equations in Minkowski space and use them to give a very simple proof of the fundamental theorem of curves in Minkowski space.…

广义相对论与量子宇宙学 · 物理学 2009-11-11 J. B. Formiga , C. Romero

We first prove that, unlike the biharmonic case, there exist triharmonic curves with nonconstant curvature in a suitable Riemannian manifold of arbitrary dimension. We then give the complete classification of triharmonic curves in surfaces…

微分几何 · 数学 2021-08-06 Stefano Montaldo , Alvaro Pampano

Pedal and contrapedal curves are important study objects of plane curves. As for a mixed-type Minkowski plane curve, since the definitions of the pedal and contrapedal curves at lightlike points can not always be given, the investigation of…

数学物理 · 物理学 2024-01-26 Xin Zhao , Pengcheng Li

Salkowski \cite{salkow}, one century ago, introduced a family of curves with constant curvature but non-constant torsion (Salkowski curves) and a family of curves with constant torsion but non-constant curvature (anti-Salkowski curves) in…

微分几何 · 数学 2009-05-12 Ahmad T Ali

We provide a unified description of Heinz-type mean curvature estimates under an assumption on the gradient bound for space-like graphs and time-like graphs in the Lorentz-Minkowski space. As a corollary, we give a unified vanishing theorem…

微分几何 · 数学 2023-08-31 Atsufumi Honda , Yu Kawakami , Miyuki Koiso , Syunsuke Tori

In this paper, we extend the method developed in [17, 18] to curves in the Minkowski plane. The method proposes a way to study deformations of plane curves taking into consideration their geometry as well as their singularities. We deal in…

微分几何 · 数学 2020-07-10 A. P. Francisco

The traditional study of plane and space algebraic curves by looking at their tangent vectors, curvatures and torsions provides geometric, but unfortunately not sufficient information about individual curves in order to be able to…

代数几何 · 数学 2021-03-04 Hana Melanova

The paper develops the Finsler-like geometry on the 1-jet space for the jet conformal Minkowski (JCM) metric, which naturally extends the Minkowski metric in the Chernov-Pavlov framework. To this aim there are determined the nonlinear…

微分几何 · 数学 2011-11-21 Vladimir Balan , Mircea Neagu

We construct and investigate smooth orientable surfaces in su(N) algebras. The structural equations of surfaces associated with Grassmannian sigma models on Minkowski space are studied using moving frames adapted to the surfaces. The first…

微分几何 · 数学 2007-05-23 A. M. Grundland , L. Snobl

This article provides an overview of various notions of shape spaces, including the space of parametrized and unparametrized curves, the space of immersions, the diffeomorphism group and the space of Riemannian metrics. We discuss the…

微分几何 · 数学 2014-10-07 Martin Bauer , Martins Bruveris , Peter W. Michor

In this paper, we define a rectifying spacelike curve in the Minkowski space-time $E_1^4$ as a curve whose position vector always lies in orthogonal complement $N^{\bot}$ of its principal normal vector field $N$. In particular, we study the…

微分几何 · 数学 2009-04-07 Ahmad T. Ali , Mehmet Onder

In this paper, using the classifications of timelike and spacelike ruled surfaces, we define and study the Mannheim offsets of spacelike ruled surfaces in Minkowski 3-space. We give the conditions for spacelike offset surfaces to be…

微分几何 · 数学 2013-05-28 Mehmet Önder , H. Huseyin Uğurlu

In this paper, by the studying of the Gauss map, Laplacian operator, curvatures of surfaces in $\mathbb{R}_{1}^{3}$ and Bour's theorem, we are going to identify surfaces of revolution with pointwise 1-type Gauss map property in…

微分几何 · 数学 2008-12-30 V. Milani , A. Shojaei-Fard

We introduce the notion of $k$-type slant helix in Minkowski space $\e_1^4$. For partially null and pseudo null curves in $\e_1^4$, we express some characterizations in terms of their curvature and torsion functions.

微分几何 · 数学 2010-01-05 Ahmad T. Ali , Rafael Lopez , Melih Turgut

Bour's minimal surface has remarkable properties in three dimensional Minkowski space. We reveal the definite and indefinite cases of the Bour's surface using Weierstrass representations, and give some differential geometric properties of…

微分几何 · 数学 2014-02-21 Erhan Guler

We introduce the Frenet theory of curves in dual space $\d^3$. After defining the curvature and the torsion of a curve, we classify all curves in dual plane with constant curvature. We also establish the fundamental theorem of existence in…

微分几何 · 数学 2024-12-02 Rafael López