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In this paper, we introduce the quaternionic similar curves in 4-dimensional Euclidean space. We show that the families of quaternionic curves with vanishing curvatures form the families of quaternionic similar curves.

Differential Geometry · Mathematics 2019-03-19 Mehmet Önder

In this study, we try to semi-real quaternionic curves in the semi-Euclidean space E_2^4. Firstly, we introduce algebraic properties of semi-real quaternions. And then, we give some characterizations of semi-real quaternionic…

Geometric Topology · Mathematics 2013-11-05 Tülay Soyfidan , Mehmet Ali Güngör

In this work, first, we express some characterizations of helices and ccr curves in the Euclidean 4-space. Thereafter, relations among Frenet-Serret invariants of Bertrand curve of a helix are presented. Moreover, in the same space, some…

Differential Geometry · Mathematics 2009-07-31 Melih Turgut , Ahmad T Ali

In this work, we give some new characterizations for inclined curves and slant helices in n-dimensional Euclidean space E^{n}. Morever, we consider the pre-characterizations about inclined curves and slant helices and reconfigure them.

Differential Geometry · Mathematics 2016-06-13 Ali Şenol , Evren Ziplar , Yusuf Yayli , İsmail Gök

Salkowski \cite{salkow}, one century ago, introduced a family of curves with constant curvature but non-constant torsion (Salkowski curves) and a family of curves with constant torsion but non-constant curvature (anti-Salkowski curves) in…

Differential Geometry · Mathematics 2009-05-12 Ahmad T Ali

In this paper, we give some characterizations for spacelike helices in Minkowski space-time. We find the differential equations characterizing the spacelike helices and also give the integral characterizations for these curves in Minkowski…

Differential Geometry · Mathematics 2010-06-04 Mehmet Önder , Hüseyin Kocyiğit , Mustafa Kazaz

We introduce the notion of $k$-type slant helix in Minkowski space $\e_1^4$. For partially null and pseudo null curves in $\e_1^4$, we express some characterizations in terms of their curvature and torsion functions.

Differential Geometry · Mathematics 2010-01-05 Ahmad T. Ali , Rafael Lopez , Melih Turgut

In this paper, we give the characterizations of spacelike B2-slant helix by means of curvatures of the spacelike curve in Minkowski 4-space. Furthermore, we give the integral characterization of the spacelike B2-slant helix.

Differential Geometry · Mathematics 2010-06-11 Mehmet Önder , Hüseyin Kocayiğit , Mustafa Kazaz

In this work, notion of a slant helix is extended to space E$^n$. Necessary and sufficient conditions to be a slant helix in the Euclidean $n-$space are presented. Moreover, we express some integral characterizations of such curves in terms…

Differential Geometry · Mathematics 2009-04-08 Ahmad Ali , Melih Turgut

In this paper, we establish equiform differential geometry of space and timelike curves in 4-dimensional Minkowski space. We obtain some conditions for these curves. Also, general helices with respect to their equiform curvatures are…

Differential Geometry · Mathematics 2015-01-13 H. S. Abdel-Aziz , M. Khalifa Saad , A. A. Abdel-Salam

In [5], Matsuda and Yorozo obtained that Mannheim curves in 4-dimensional Euclidean space. In this study, we define quaternionic Mannheim curves and we give some characterizations of them in Euclidean 3-space and 4-space.

Differential Geometry · Mathematics 2013-11-05 O. Zeki Okuyucu

In this paper, we define a new special curve in Euclidean 3-space which we call {\it $k-$slant helix} and introduce some characterizations for this curve. This notation is generalization of a general helix and slant helix. Furthermore, we…

Differential Geometry · Mathematics 2009-09-15 Ahmad T Ali

In this study, we define a new type of direction curves in the Euclidean 3-space such as osculating-direction curve. We give the characterizations for these curves. Moreover, we obtain the relationships between osculating direction curves…

Differential Geometry · Mathematics 2015-03-26 Mehmet Önder , Sezai Kızıltuğ

We consider a unit speed curve $\alpha$ in Euclidean four-dimensional space $E^4$ and denote the Frenet frame by $\{T,N,B_1,B_2\}$. We say that $\alpha$ is a slant helix if its principal normal vector $N$ makes a constant angle with a fixed…

Differential Geometry · Mathematics 2009-01-22 Ahmad T. Ali , Rafael López

We consider a curve $\alpha=\alpha(s)$ in Minkowski 3-space $E_1^3$ and denote by $\{T,N,B}$ the Frenet frame of $\alpha$. We say that $\alpha$ is a slant helix if there exists a fixed direction $U$ of $E_1^3$ such that the function…

Differential Geometry · Mathematics 2008-10-09 Ahmad T. Ali , Rafael López

In this study, we have identified $V_3$ slant helix ($2^{nd}$ type slant helix, $V_5$ slant helix ($3^{rd}$ type slant helix) and attained some characteristic properties in the Euclidean 5-Space $E^5$. In addition to this, we have proven…

Differential Geometry · Mathematics 2014-02-14 Melek Masal , Ayse Zeynep Azak

In this paper, in Euclidean n -space, we investigate the relation between slant helices and spherical helices. Moreover, in E n, we show that a slant helix and the tangent indicatrix of the slant helix have the same axis (or direction).…

Differential Geometry · Mathematics 2016-06-10 Yusuf Yayli , Evren Ziplar

The notion of rectifying curve in the Euclidean space is introduced by Chen as a curve whose position vector always lies in its rectifying plane spanned by the tangent and the binormal vector field t and n_2 of the curve. In this study, we…

Geometric Topology · Mathematics 2013-11-05 Tülay Soyfidan , Mehmet Ali Güngör

In this paper, we study helices and the Bertrand curves. We obtain some of the classification results of these curves with respect to the modified orthogonal frame in Euclidean 3-spaces.

Differential Geometry · Mathematics 2018-12-20 Mohamd Saleem Lone , Hasan Es , Murat Kemal Karacan , Bahaddin Bukcu

In [18], L. R. Pears proved that Bertrand curves in E-n(n > 3) are degenerate curves. This result restate in [16] by Matsuda and Yorozu. They proved that there is no special Bertrand curves in E-n(n > 3) and they define new kind of Bertrand…

Differential Geometry · Mathematics 2016-11-04 İsmail Gök , Ferdağ Kahraman Aksoyak
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