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Toplam kayıt 44, listelenen: 1-10
Directional del-derivative and Curves on n-dimensional Time Scales
(Springer, 2009)
The general ideal in this paper is to study a differential calculus for multivariable functions, directional del-derivative and curves of parametric equations on n-dimensional time scales.
On Pseudospherical Smarandache Curves in Minkowski 3-Space
(Hindawi Ltd, 2014)
In this paper we define nonnull and null pseudospherical Smarandache curves according to the Sabban frame of a spacelike curve lying on pseudosphere in Minkowski 3-space. We obtain the geodesic curvature and the expressions ...
On osculating, normal and rectifying bi-null curves in (6)(3)
(Taylor & Francis Ltd, 2017)
In this paper we give the necessary and sufficient conditions for bi-null curves in (6)(3) to be osculating, normal or rectifying curves in terms of their curvature functions.
On the Involute-Evolute of the Pseudonull Curve in Minkowski 3-Space
(Hindawi Publishing Corporation, 2013)
We have generalized the involute and evolute curves of the pseudonull curves alpha in E-1(3); that is, alpha is a spacelike curve with a null principal normal. Firstly, we have shown that there is no involute of the ...
Sturmian Spirals In Lorentz-Minkowski Plane
(Inst Biophysics & Biomedical Engineering, Bulgarian Acad Sciences, 2015)
The Sturm spirals which can be introduced as those plane curves whose curvature radius is equal to the distance from the origin are embedded in to one parameter family of curves. In this paper, we consider the spacelike ...
On (1, 3)-Cartan null Bertrand curves in semi-Euclidean 4-space with index 2
(Springer Basel Ag, 2016)
In this paper, we study generalized Cartan null Bertrand curves in semi-Euclidean 4-space E-2(4) with index 2.
Ruled surfaces with bi-null curves in R-2(5)
(Springer-Verlag Italia Srl, 2017)
In the present paper, we discuss the geometric properties of two classes of ruled surfaces whose directrix curve is a bi-null curve in semi-Euclidean space R-2(5). We get some classes of flat marginally trapped surfaces in R-2(5).
Note On Bertrand B-Pairs Of Curves In Minkowski 3-Space
(Honam Mathematical Soc, 2018)
In this paper, we define null Cartan and pseudo null Bertrand curves in Minkowski space ET according to their Bishop frames. We obtain the necessary and sufficient conditions for pseudo null curves to be Bertand B-curves ...
Bi-null curves with constant curvatures in R-2(5)
(Springer Basel Ag, 2019)
In the present paper, we classify bi-null curves with constant curvatures in semi-Euclidean 5-space R-2(5) with index 2.
Generalized Null Bertrand Curves In Minkowski Space-Time
(Univ Al I Cuza, Fac Math, 2014)
COKEN and CIFTCI proved that a null Cartan curve in Minkowski space-time E-1(4) is a null Bertrand curve if and only if k(2) is nonzero constant and k(3) is zero. That is, the null curve with non-zero curvature k(3) is not ...