Results 11 to 20 of about 89 (38)

Curves in the Lorentz-Minkowski plane: elasticae, catenaries and grim-reapers

open access: yesOpen Mathematics, 2018
This article is motivated by a problem posed by David A. Singer in 1999 and by the classical Euler elastic curves. We study spacelike and timelike curves in the Lorentz-Minkowski plane 𝕃2 whose curvature is expressed in terms of the Lorentzian ...
Castro Ildefonso   +2 more
doaj   +1 more source

Singularities of lightcone pedals of spacelike curves in Lorentz-Minkowski 3-space

open access: yesOpen Mathematics, 2016
In this paper, geometric properties of spacelike curves on a timelike surface in Lorentz-Minkowski 3-space are investigated by applying the singularity theory of smooth functions from the contact viewpoint.
Chen Liang
doaj   +1 more source

Weighted minimal translation surfaces in the Galilean space with density

open access: yesOpen Mathematics, 2017
Translation surfaces in the Galilean 3-space G3 have two types according to the isotropic and non-isotropic plane curves. In this paper, we study a translation surface in G3 with a log-linear density and classify such a surface with vanishing weighted ...
Yoon Dae Won
doaj   +1 more source

Smarandache Curves and Spherical Indicatrices in the Galilean 3-Space

open access: yes, 2015
In the present paper, Smarandache curves for some special curves in the three- dimensional Galilean space G 3 are investigated. Moreover, spherical indicatrices for the helix as well as circular helix are introduced.
H. Abdelaziz, Prof. M. Khalifa Saad
semanticscholar   +1 more source

New Trends in Teichmüller Theory and Mapping Class Groups

open access: yesOberwolfach Reports, 2014
The program “New Trends in Teichmüller Theory and Mapping Class Groups” brought together people working in various aspects of the field and beyond. The focus was on the recent developments that include higher Teichmüller theory, the relation with three ...
S. Morita   +3 more
semanticscholar   +1 more source

MANNHEIM CURVES IN AN $N$-DIMENSIONAL LORENTZ MANIFOLD

open access: yes, 2014
In this paper, we give the definition of non-null Mannheim curve and null Mannheim curve in an n-dimensional Lorentz manifold. Furthermore, we give the condition for the non-null Mannheim partner curves and the null Mannhein partner curves.
D. Yoon
semanticscholar   +1 more source

SPACELIKE SUBMANIFOLDS IN DE SITTER SPACE

open access: yes, 2010
We investigate the differential geometry of spacelike submanifolds of codimension at least two in de Sitter space as an application of the theory of Legendrian singularities.
M. Kasedou
semanticscholar   +1 more source

ON THE INVOLUTE AND EVOLUTE CURVES OF THE TIME LIKE CURVE IN MINKOWSKI 3-SPACE

open access: yes, 2007
1. Pre l iminar i e s Let IR3 = {{xi,x2,x'i)\xi, X2, x3 £ IR} be a 3-dimensional vector space, a n d le t x = ( x i , x 2 , £ 3 ) a n d y = (2/1,2/2,2/3) b e t w o v e c t o r s in I R 3 .
Bahaddin Bukcu, M. K. Karacan
semanticscholar   +1 more source

Discrete cyclic systems and circle congruences. [PDF]

open access: yesAnn Mat Pura Appl, 2022
Hertrich-Jeromin U, Szewieczek G.
europepmc   +1 more source

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