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相关论文: A Study on Dual Mannheim Partner Curves

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We make observations about constant mean curvature surfaces in Euclidean 3-space and their dual surfaces, and the resulting pairs of surfaces in hyperbolic 3-space under the Lawson correspondence.

微分几何 · 数学 2012-06-26 Wayne Rossman , Magdalena Toda

This is an elementary introduction to a method for studying harmonic maps into symmetric spaces, and in particular for studying constant mean curvature (CMC) surfaces, that was developed by J. Dorfmeister, F. Pedit and H. Wu. There already…

微分几何 · 数学 2009-12-25 Shoichi Fujimori , Shimpei Kobayashi , Wayne Rossman

Special curves and their characterizations are one of the main area of mathematicians and physicians. As a special curve we will mainly focus on Mannheim curve which has the following relation: k1={\beta}(k1^2+k2^) where k1 and k2 are…

微分几何 · 数学 2011-11-03 Mehmet Bektaş , Mahmut Ergüt , Alper Osman Öğrenmiş

In this paper, we consider the idea of Bertrand curves for curves lying on surfaces in Minkowski 3-space. By considering the Darboux frame, we define these curves as Bertrand D-curves and give the characterizations for those curves. We also…

微分几何 · 数学 2010-07-14 Mustafa Kazaz , H. Huseyin Ugurlu , Mehmet Onder , Seda Oral

In this paper, we obtain the characterizations of Mannheim offsets of the timelike ruled surface with spacelike rulings in dual Lorentzian space. We give the relations between terms of their integral invariants and also we give the new…

微分几何 · 数学 2011-02-01 Mehmet ONder , H. Huseyin Ugurlu

In this work, we studied the properties of the spherical indicatrices of a Bertrand curve and its mate curve and presented some characteristic properties in the cases that Bertrand curve and its mate curve are slant helices, spherical…

微分几何 · 数学 2016-05-10 Yılmaz Tunçer , Serpil Unal , M. Kemal Karacan

In this paper, using the classifications of timelike and spacelike ruled surfaces, we study the Mannheim offsets of timelike ruled surfaces in Minkowski 3-space. Firstly, we define the Mannheim offsets of a timelike ruled surface by…

微分几何 · 数学 2013-05-28 Mehmet Onder , H. Hüseyin Uğurlu

In this paper, tangent-, principal normal-, and binormal-wise associated curves are defined such that each of these vectors of any given curve lies on the osculating, normal, and rectifying plane of its mate, respectively. For each…

综合数学 · 数学 2022-01-02 Süleyman Şenyurt , Davut Canli , Kebire Hilal Ayvaci

In this study, we introduce a new approach to curve pairs by using integral curves. We consider the direction curve and donor curve to study curve couples such as involute-evolute curves, Mannheim partner curves and Bertrand partner curves.…

微分几何 · 数学 2017-01-18 Mehmet Önder

In this study, we define some new types of ruled surfaces called slant ruled surfaces. We give some characterizations for a regular ruled surface to be a slant ruled surface in Euclidean 3- space. We show that if the slant ruled surface is…

微分几何 · 数学 2018-06-05 Mehmet Önder

We study the local equivalence problems of curves and surfaces in three dimensional Heisenberg group via Cartans method of moving frames and Lie groups, and find a complete set of invariants for curves and surfaces. For surfaces, in terms…

微分几何 · 数学 2013-01-29 Hung-Lin Chiu , Sin-Hua Lai

We study surfaces in Euclidean space constructed by the sum of two curves or that are graphs of the product of two functions. We consider the problem to determine all these surfaces with constant Gauss curvature. We extend the results to…

微分几何 · 数学 2014-10-10 Rafael López , Marilena Moruz

A Bertrand curve in the 4-dimensional Euclidean space is a space curve whose first normal line is the same as the first normal line of another curve. On the other hand, a Mannheim curve in the 4-dimensional Euclidean space is a space curve…

微分几何 · 数学 2022-04-14 Shun'ichi Honda , Masatomo Takahashi , Haiou Yu

The main aim of this survey paper is to gather together some results concerning the Calabi type duality discovered by Hojoo Lee between certain families of (spacelike) graphs with constant mean curvature in Riemannian and Lorentzian…

微分几何 · 数学 2018-03-20 José M. Manzano

We construct a twin correspondence between graphs with prescribed mean curvature in three-dimensional Riemannian Killing submersions and spacelike graphs with prescribed mean curvature in three-dimensional Lorentzian Killing submersions.…

微分几何 · 数学 2025-07-25 Hojoo Lee , José M. Manzano

The Lamarle Formula, given by Kruppa in \cite{Kr}, is known as a relationship between the Gaussian curvature and the distribution parameter of a ruled surface in the surface theory. The ruled surfaces were investigated in 3 different…

微分几何 · 数学 2014-03-27 Soley Ersoy , Murat Tosun

In this paper, we define dual geodesic trihedron(dual Darboux frame) of a spacelike ruled surface. Then, we study Mannheim offsets of spacelike ruled surfaces in dual Lorentzian space by considering the E. Study Mapping. We represent…

微分几何 · 数学 2013-04-10 Mehmet Önder , H. Hüseyin Uğurlu

We study those Lagrangian surfaces in complex Euclidean space which are foliated by circles or by straight lines. The former, which we call cyclic, come in three types, each one being described by means of, respectively, a planar curve, a…

微分几何 · 数学 2009-09-18 Henri Anciaux , Pascal Romon

The interplay among the spectrum, geometry and magnetic field in tubular neighbourhoods of curves in Euclidean spaces is investigated in the limit when the cross section shrinks to a point. Proving a norm resolvent convergence, we derive…

数学物理 · 物理学 2015-06-15 David Krejcirik , Nicolas Raymond

We define and study the Weil pairing on the moduli of twisted curves. If $X$ is a twisted curve, then we can combinatorially describe a certain subgroup and a quotient group of $\text{Pic}(X)[2]$ that are Weil dual. Moreover, the pairing…

代数几何 · 数学 2023-10-16 Ashwin Deopurkar