Results 11 to 20 of about 201,245 (267)

Plane Section Curves on Surfaces of NCP Functions

open access: yesAxioms, 2022
The goal of this paper is to investigate the curves intersected by a vertical plane with the surfaces based on certain NCP functions. The convexity and differentiability of these curves are studied as well.
Shun-Wei Li   +2 more
doaj   +1 more source

Curve and Surface Geometric Modeling via Generalized Bézier-like Model

open access: yesMathematics, 2022
Generalized Bernstein-like functions (gB-like functions) with different shape parameters are used in this work. Parametric and geometric conditions in generalized form are developed. Some numerical examples of the parametric continuity (PC) and geometric
Moavia Ameer   +4 more
doaj   +1 more source

Systems of Curves on Surfaces

open access: yesJournal of Combinatorial Theory, Series B, 1996
It is proved that for each compact (bordered) surface \(\Sigma\) and a positive integer \(k\) there is a constant \(N\) with the following property: If \(\Gamma\) is a family of pairwise nonhomotopic closed curves on \(\Sigma\) such that any two curves from \(\Gamma\) intersect in at most \(k\) points and each curve has at most \(k\) self-intersections,
Martin Juvan   +2 more
openaire   +1 more source

Transforming Curves on Surfaces

open access: yesJournal of Computer and System Sciences, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tamal K. Dey, Sumanta Guha
openaire   +1 more source

Curves on K3 surfaces

open access: yesDuke Mathematical Journal, 2022
We complete the remaining cases of the conjecture predicting existence of infinitely many rational curves on K3 surfaces in characteristic zero, prove almost all cases in positive characteristic and improve the proofs of the previously known cases.
Chen, Xi   +2 more
openaire   +4 more sources

On the distribution of ramification points in trigonal curves

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
We study the distribution of the total and ordinary ramification points of a trigonal curve over the intersection of this curve with rational curves on a rational normal scroll.
Cícero F. Carvalho
doaj   +1 more source

From Normal Surfaces to Normal Curves to Geodesics on Surfaces

open access: yesAxioms, 2017
This paper gives a study of a two dimensional version of the theory of normal surfaces; namely, a study o normal curves and their relations with respect to geodesic curves.
Eli Appleboim
doaj   +1 more source

Inextensible Flows of Curves on Lightlike Surfaces

open access: yesMathematics, 2018
In this paper, we study inextensible flows of a curve on a lightlike surface in Minkowski three-space and give a necessary and sufficient condition for inextensible flows of the curve as a partial differential equation involving the curvatures of the ...
Zühal Küçükarslan Yüzbaşı   +1 more
doaj   +1 more source

The Intersection of Two Ruled Surfaces Corresponding to Spherical Indicatrix Curves on the Unit Dual Sphere

open access: yesCumhuriyet Science Journal, 2023
In this study, we first investigate the intersection of two different ruled surfaces in R^3 for two different tangential spherical indicatrix curves on DS^2 using the E. Study mapping.
Yunus Öztemir, Mustafa Çalışkan
doaj   +1 more source

Integrable Curves and Surfaces

open access: yesGeometry, Integrability and Quantization, 2016
The surfaces in three dimensional Euclidean space ${\mathbb R}^3$ obtained through the use of the soliton techniques are called integrable surfaces. Integrable equations and their Lax equations possess certain symmetries. Infinitesimal versions of these symmetries are deformations which are responsible in constructing the integrable surfaces. There are
Gurses, Metin, Tek, Suleyman
openaire   +3 more sources

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