Results 11 to 20 of about 483 (49)

Ramification estimates for the hyperbolic Gauss map [PDF]

open access: yes, 2008
We give the best possible upper bound on the number of exceptional values and the totally ramified value number of the hyperbolic Gauss map for pseudo-algebraic constant mean curvature one surfaces in the hyperbolic three-space and some partial results ...
Kawakami, Yu
core   +1 more source

THE VECTOR FIELDS ACROSS THE TANGENT BUNDLE TO A SPINNING 2-SPHERE

open access: yesInternational Journal of Apllied Mathematics, 2018
Assuming a spinning 2-sphere in the Euclidean 3-space that is observed by a frame at any exterior point, we deduce the Coriolis effect, which asserts that the rotational directions of the flows on the Earth surface are opposite across the Equator. By the
G. Light
semanticscholar   +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

A characterization of regular saddle surfaces in the hyperbolic and spherical three‐space

open access: yesAbstract and Applied Analysis, Volume 7, Issue 7, Page 349-355, 2002., 2002
We prove that the class of regular saddle surfaces in the hyperbolic or spherical three‐space coincides with the class of regular surfaces with curvature not greater than the curvature of the surrounding space. We also show that a similar result for nonregular surfaces is incorrect.
Dimitrios E. Kalikakis
wiley   +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

The Forward Kinematics of Rolling Contact of Spacelike Surfaces in Lorentzian 3-Space

open access: yesCumhuriyet Science Journal, 2018
In thispaper, we investigate the forward kinematics of spin-rolling motion withoutsliding of one spacelike surface on another spacelike surface along thespacelike contact trajectory curves of the surfaces in Lorentzian 3-space.
Mehmet Aydınalp   +2 more
doaj   +1 more source

A note about the torsion of null curves in the $3$-dimensional Minkowski spacetime and the Schwarzian derivative

open access: yes, 2015
The main topic of this paper is to show that in the 3-dimensional Minkowski spacetime, the torsion of a null curve is equal to the Schwarzian derivative of a certain function appearing in a description of the curve.
Olszak, Zbigniew
core   +1 more source

Group-theoretic Approach for Symbolic Tensor Manipulation: II. Dummy Indices

open access: yes, 2001
Computational Group Theory is applied to indexed objects (tensors, spinors, and so on) with dummy indices. There are two groups to consider: one describes the intrinsic symmetries of the object and the other describes the interchange of names of dummy ...
B. F. SVAITER   +2 more
core   +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

Isophote curves on timelike surfaces in Minkowski 3-space

open access: yes, 2012
Isophote comprises a locus of the surface points whose normal vectors make a constant angle with a fixed vector. In this paper, isophote curves are studied on timelike surfaces in Minkowski 3-space E31.
Ali   +25 more
core   +1 more source

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