Results 21 to 30 of about 1,619,181 (215)

Salkowski Curves and Their Modified Orthogonal Frames in $\mathbb{E}^{3}$

open access: yesJournal of New Theory, 2022
In this study, we examine some properties of Salkowski curves in $\mathbb{E}^{3}$. We then make sense of the angle $(nt)$ in the parametric equation of the Salkowski curves.
Mehmet Bektaş   +2 more
doaj   +1 more source

Smarandache curves of Anti-Salkowski curve according to the spherical indicatrix curve of the unit darboux vector

open access: yesGümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
In this paper, we have defined special Smarandache curves according to Sabban frame formed by the unit Darboux vector of Anti - Salkowski curve. Next, the Sabban frame belonging to these curves have been constituted.
S. Şenyurt, Melek Uzun
semanticscholar   +1 more source

Some Special Ruled Surfaces Generated by a Direction Curve according to the Darboux Frame and their Characterizations

open access: yesAbstract and Applied Analysis, 2021
In this work, we consider the Darboux frame T,V,U of a curve lying on an arbitrary regular surface and we construct ruled surfaces having a base curve which is a V-direction curve.
Nidal Echabbi, Amina Ouazzani Chahdi
doaj   +1 more source

Sweeping surface due to rotation minimizing Darboux frame in Euclidean 3-space E3

open access: yesAIMS Mathematics, 2023
In this paper, we address a new version of Darboux frame using a common tangent vector field to a surface along a curve and call this frame the rotation minimizing Darboux frame (RMDF).
Maryam T. Aldossary   +1 more
doaj   +1 more source

Quaternionic Shape Operator and Rotation Matrix on Ruled Surfaces

open access: yesAxioms, 2023
In this article, we examine the relationship between Darboux frames along parameter curves and the Darboux frame of the base curve of the ruled surface. We derive the equations of the quaternionic shape operators, which can rotate tangent vectors around ...
Yanlin Li, Abdussamet Çalışkan
doaj   +1 more source

Generating Generalized Cylinder with Geodesic Base Curve According to Darboux Frame

open access: yesJournal of New Theory, 2021
This paper aims to design a generalized cylinder with a geodesic base curve according to the Darboux frame in Euclidean 3-space. A generalized cylinder is a special ruled surface that is constructed by a continuous fixed motion of a generator line called
Nabil Althibany
doaj   +1 more source

Characterizations of Unit Darboux Ruled Surface with Quaternions

open access: yesJournal of New Theory, 2023
This paper presents a quaternionic approach to generating and characterizing the ruled surface drawn by the unit Darboux vector. The study derives the Darboux frame of the surface and relates it to the Frenet frame of the base curve. Moreover, it obtains
Abdussamet Çalışkan
doaj   +1 more source

Harmonic Evolute Surface of Tubular Surfaces via B-Darboux Frame in Euclidean 3-Space

open access: yesAdvances in Mathematical Physics, 2021
In this article, we look at a surface associated with real-valued functions. The surface is known as a harmonic surface, and its unit normal vector and mean curvature have been used to characterize it. We use the Bishop-Darboux frame (B-Darboux frame) in
E. M. Solouma, Ibrahim AL-Dayel
doaj   +1 more source

Realization problems for limit cycles of planar polynomial vector fields [PDF]

open access: yes, 2015
We show that for any finite configuration of closed curves $\Gamma\subset \mathbb{R}^2$, one can construct an explicit planar polynomial vector field that realizes $\Gamma$, up to homeomorphism, as the set of its limit cycles with prescribed periods ...
Margalef-Bentabol, Juan   +1 more
core   +2 more sources

On a Vector Modified Yajima–Oikawa Long-Wave–Short-Wave Equation

open access: yesMathematics, 2019
A vector modified Yajima−Oikawa long-wave−short-wave equation is proposed using the zero-curvature presentation. On the basis of the Riccati equations associated with the Lax pair, a method is developed to construct multi-fold classical and ...
Xianguo Geng, Ruomeng Li
doaj   +1 more source

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