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In this study, some characterizations of Euler spirals in E_1^{3} have been presented by using their main property that their curvatures are linear. Moreover, discussing some properties of Bertrand curves and helices, the relationship…

微分几何 · 数学 2012-02-01 Yusuf Yayli , Semra Saracoglu

In this article, we investigate Bertrand curves corresponding to the spherical images of the tangent, binormal, principal normal and Darboux indicatrices of a space curve in Euclidean 3-space. As a result, in case of a space curve is a…

微分几何 · 数学 2014-09-01 Murat Babaarslan , Yusuf Yayli

In this paper, we propose a novel lower dimensional representation of a shape sequence. The proposed dimension reduction is invertible and computationally more efficient in comparison to other related works. Theoretically, the differential…

计算机视觉与模式识别 · 计算机科学 2011-08-02 Sheng Yi , Hamid Krim , Larry K. Norris

We study the class of planar polynomial vector fields admitting Darboux first integrals of the type $\prod_{i=1}^r f_i^{\alpha_i}$, where the $\alpha_i$'s are positive real numbers and the $f_i$'s are polynomials defining curves with only…

动力系统 · 数学 2018-08-13 A. Ferragut , C. Galindo , F. Monserrat

In this paper, we study a dual analogue of the classical catenary within the class of admissible curves in the dual plane $\mathbb{D}^2$. We introduce $\alpha$-catenaries in $\mathbb{D}^2$ as stationary points of a potential energy…

微分几何 · 数学 2026-03-03 Muhittin Evren Aydin , Rafael López

The current paper is devoted to the study of integral curves of constant type in parabolic homogeneous spaces. We construct a canonical moving frame bundle for such curves and give the criterium when it turns out to be a Cartan connection.…

微分几何 · 数学 2013-07-02 Boris Doubrov , Igor Zelenko

In this article a relation between curvature functionals for surfaces in the Euclidean space and area functionals in relative differential geometry will be given. Relative differential geometry can be described as the geometry of surfaces…

微分几何 · 数学 2009-12-22 Steven Verpoort

We consider a curve $\alpha=\alpha(s)$ in Minkowski 3-space $E_1^3$ and denote by $\{T,N,B}$ the Frenet frame of $\alpha$. We say that $\alpha$ is a slant helix if there exists a fixed direction $U$ of $E_1^3$ such that the function…

微分几何 · 数学 2008-10-09 Ahmad T. Ali , Rafael López

In this paper, we introduce a new class of curves \alpha called a f-rectifying curves, which its f-position vector defined by {\alpha}_{f}(s)=\int f(s)T(s)ds always lie in the rectifying plane of \alpha, where f is an integrable function…

微分几何 · 数学 2022-01-25 Fouzi Hathout

We review the notion of shape tensor of an embedded manifold, which efficiently combines intrinsic and extrinsic geometry, and allows for intuitive understanding of some basic concepts of classical differential geometry, such as parallel…

数学物理 · 物理学 2018-08-10 Vaclav Zatloukal

Given a unit vector field on a closed Euclidean hypersurface, we define a map from the hypersurface to a sphere in the Euclidean space. This application allows us to exhibit a list of topological invariants which combines the second…

微分几何 · 数学 2016-09-16 Fabiano G. B. Brito , Icaro Gonçalves

In this study, we introduce a new type of surface curves called D-type curve. This curve is defined by the property that the unit Darboux vector W0 of a space curve r(s) and unit surface normal n along the curve r(s) satisfy the condition…

微分几何 · 数学 2017-07-20 Onur Kaya , Mehmet Önder

The theory of linear transports along paths in vector bundles, generalizing the parallel transports generated by linear connections, is developed. The normal frames for them are defined as ones in which their matrices are the identity…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Bozhidar Z. Iliev

Let G be a Lie group. On the trivial principal G-bundle over the Lie algebra of G there is a natural connection whose curvature is the Lie bracket. The exponential map is given by parallel transport of this connection. If G is the…

微分几何 · 数学 2010-01-02 Kent E. Morrison

In this paper, we study slant helix (or $\overset{\_}{\xi}_{2}$-helix) and Darboux helix in Myller configuration $M$. We show that a curve in $M$ is a slant helix if and only if it is a Darboux helix. We give the alternative frame of a…

综合数学 · 数学 2023-07-14 Akın Alkan , Mehmet Önder

Geometric frameworks for analyzing curves are common in applications as they focus on invariant features and provide visually satisfying solutions to standard problems such as computing invariant distances, averaging curves, or registering…

统计方法学 · 统计学 2025-11-24 Perrine Chassat , Juhyun Park , Nicolas Brunel

Families of conformal field theories are naturally endowed with a Riemannian geometry which is locally encoded by correlation functions of exactly marginal operators. We show that the curvature of such conformal manifolds can be computed…

高能物理 - 理论 · 物理学 2023-08-09 Bruno Balthazar , Clay Cordova

In this paper, we define some new associated curves as integral curves of a vector field generated by Frenet vectors of tangent indicatrix of a curve in Euclidean 3-space. We give some relationships between curvatures of these curves. By…

微分几何 · 数学 2019-10-16 Burak Sahiner

We study Christoffel and Darboux transforms of discrete isothermic nets in 4-dimensional Euclidean space: definitions and basic properties are derived. Analogies with the smooth case are discussed and a definition for discrete Ribaucour…

dg-ga · 数学 2008-02-03 Udo Hertrich-Jeromin , Tim Hoffmann , Ulrich Pinkall

A surface that is the pointwise sum of circles in Euclidean space is either coplanar or contains no more than 2 circles through a general point. A surface that is the pointwise product of circles in the unit-quaternions contains either 2,…

代数几何 · 数学 2024-09-16 Niels Lubbes