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相关论文: Spacelike and Timelike Admissible Smarandache Curv…

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In the present paper, we consider a position vector of an arbitrary curve in the three-dimensional Galilean 3-space. Furthermore, we give some conditions on the curvatures of this arbitrary curve to study special curves and their…

微分几何 · 数学 2017-04-06 H. S. Abdel-Aziz , M. Khalifa Saad

In this paper, we investigate and characterise an arbitrary admissible curve in terms of its curvature functions in the pseudo-Galilean space $G_{1}^{4}$% . We also give some special curves in four-dimensional pseudo-Galilean space and…

微分几何 · 数学 2025-09-30 Fatma Almaz , Handan Oztekin

In the present paper, we investigate special Smarandache curves with Darboux apparatus with respect to Frenet and Darboux frame of an arbitrary curve on a surface in the three-dimensional Galilean space G3. Furthermore, we give general…

综合数学 · 数学 2018-01-09 Tevfik Şahin , Merve Okur

Backlund transformations of admissible curves in the Galilean 3-space and pseudo-Galilean 3-space and also spatial Backlund transformations of space curves in Galilean 4-space preserve the torsions under certain assumptions.

微分几何 · 数学 2011-05-11 Süleyman Cengiz , Nevin Gürbüz

The aim of this work is to study the Mannheim curves in 3-dimensional Galilean and Pseudo - Galilean space. We obtain the characterizations between the curvatures and torsions of the Mannheim partner curves.

微分几何 · 数学 2011-11-03 Alper Osman Öğrenmiş , Handan Öztekin , Mahmut Ergüt

In the theory of differential geometry curves, a curve is said to be of constant-ratio if the ratio of the length of the tangential and normal components of its position vector function is constant. In this paper, we study and characterize…

微分几何 · 数学 2022-08-09 H. S. Abdel-Aziz , M. Khalifa Saad , Haytham. A. Ali

In this paper, we focus on some characterizations for curves in the Galilean and Pseudo-Galilean space.

The aim of this paper is to study the Mannheim partner curves in three dimensional Galilean space . Some well known theorems are obtained related to Mannheim curves.

微分几何 · 数学 2010-03-17 S. Ersoy , M. Akyiğit , M. Tosun

In this paper, we investigate special Smarandache curves according to Bishop frame in Euclidean 3-space and we give some differential geometric properties of Smarandache curves. Also we find the centers of the osculating spheres and…

综合数学 · 数学 2016-08-14 Muhammed Çetin , Yılmaz Tunçer , Murat Kemal Karacan

In this paper, first and second type admissible Mannheim partner curves are defined in pseudo-Galilean space $G_3^1$. Moreover, it is proved that the distance between the reciprocal points of both of first and second type admissible…

微分几何 · 数学 2010-02-03 M. Akyigit , A. Z. Azak , M. Tosun

We defined normal and rectifying curves in Pseudo-Galilean Space G_3^1. Also we obtained some characterizations of this curves in G_3^1.

微分几何 · 数学 2011-12-07 Handan Öztekin , Alper Osman Öğrenmiş

This paper is devoted to the study of AW(k)-type curves according to the equiform differential geometry of the pseudo-Galilean space. We show that equiform Bertrand curves are circular helices or isotropic circles of the pseudo-Galilean…

微分几何 · 数学 2015-01-30 H. S. Abdel-Aziz , M. Khalifa Saad

A Smarandache multi-space is a union of $n$ different spaces equipped with some different structures for an integer $n\geq 2$, which can be both used for discrete or connected spaces, particularly for geometries and spacetimes in…

综合数学 · 数学 2007-05-23 Linfan Mao

In this study, we deal with the local structure of curves and surfaces immersed in a pseudo-isotropic space I_{p}^{3} that is a particular Cayley-Klein space. We provide the formulas of curvature, torsion and Frenet trihedron in order for…

微分几何 · 数学 2018-11-13 Muhittin Evren Aydin

In the present paper, we define the notions of Lorentzian Sabban frames and de Sitter evolutes of the unit speed space-like curves on de Sitter 2-space $\mathbb{S}^{2}_{1}$. In addition, we investigate the invariants and geometric…

微分几何 · 数学 2026-02-24 Murat Babaarslan , Yusuf Yayli

Abstract In this paper, definition of involute-evolute curve couple in Galilean space is given and some well-known theorems for the involute-evolute curves are obtained in 3-dimensional Galilean space.

微分几何 · 数学 2019-03-14 A. Z. Azak , M. Akyigit , S. Ersoy

Localising the galileon symmetry along with Poincare symmetry we have found a version of galileon model coupled with curved spacetime which retains the internal galileon symmetry in covariant form. Also, the model has second order equations…

广义相对论与量子宇宙学 · 物理学 2017-12-06 Rabin Banerjee , Pradip Mukherjee

Within the generalized Newton-Cartan theory, Galilean Twisted spacetimes are introduced as dual models of the well-known relativistic twisted spacetimes. As a natural generalization, torqued vector fields in Galilean spacetimes are defined,…

广义相对论与量子宇宙学 · 物理学 2025-11-24 Daniel de la Fuente , Rafael M. Rubio , Jose Torrente

We analyse the existence of closed timelike curves in spacetimes which possess an isometry. In particular we check which discrete quotients of such spaces lead to closed timelike curves. As a by-product of our analysis, we prove that the…

高能物理 - 理论 · 物理学 2016-08-16 Liat Maoz , Joan Simón

The special Galilean group, usually denoted SGal(3), is a 10-dimensional Lie group whose important subgroups include the special orthogonal group, the special Euclidean group, and the group of extended poses. We briefly describe SGal(3) and…

机器人学 · 计算机科学 2024-10-04 Jonathan Kelly
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